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| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | ||||
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[求助]
英文潤(rùn)色。翻譯了幾段英文，請(qǐng)大家?guī)兔?rùn)色一下，主要是語(yǔ)法和表達(dá)
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(1) Numerical simulation results of the axial initiation process of annular booster pellet under four-point-synchronous explosive circuit From Fig 1, the specific initiation process of the annular booster pellet can be observed by the numerical simulation, facilitating the analysis and understanding of its initiation mechanism, and providing theoretical guidance for the design of high-energy booster pellet. When t =1.198 ??s, two adjacent detonation waves have oblique impacts, and peak value of the pressure increases. When t??1.299 ??s, the front of the detonation wave arrives at 10mm of charge height, and the shape of the wave front is obviously wavy, and the distance between the peak and trough is 0.65 mm. When t??2.500 ??s, the front of the detonation wave reaches the bottom of the charge, and the shape of wave front is still not too smooth. (2) Numerical simulation results of the radial convergence process of annular booster pellet under four-point-synchronous explosive circuit From Fig 1, the radial convergence process of the annular booster pellet can be observed by the numerical simulation. When annular booster pellet is simultaneously initiated at symmetrical four points, the detonation waves propagate in the axial direction and also along the radial direction of the annular booster pellet at the same time. When detonation wave reaches the internal surface of the booster pellet, it would attenuate into shock wave in the central air medium and propagate to the center axis of the booster pellet. The shock wave propagating to the center axis of the booster pellet is gradually strengthening as well as the axial detonation wave pressure rising. When t=2.400 µs, the shock waves propagating to the annular booster pellet center begin to converge, and the pressure gradually increases. At that time, the detonation wave basically reaches the booster pellet bottom in the axial direction. Because the speed of the shock wave propagating in the booster pellet center is slow, the center convergence time has a certain time delay to the axial detonation. When t=2.900 µs, the center convergence pressure reaches a maximum that Pmax=32.39 Gpa. When t=3.799 µs, the annular booster pellet convergence is over, but the maximum pressure in the center is still high to 29.12 Gpa. This high pressure is helpful for the main charge??s initiation in the center of the annular booster pellet. When t=0.799??s, peak pressure of the annular booster pellet under eight-point-synchronous explosive circuit is 25.43Gpa, while peak pressure of the annular booster pellet under four-point-synchronous explosive circuit is only 25.90Gpa. By comparison of the two waveforms when the detonation waves reach at 10mm of the booster pellet height, it can be seen that the waveform of annular booster pellet under eight-point-synchronous explosive circuit is much better than that of under four-point. When the annular booster pellet height is unchanged, the axial waveform of the annular booster pellet under four-point-synchronous explosive circuit is hard to be smooth, so that the axial output energy is not strong, having a great shortage to enhance the initiation capacity of the annular booster pellet. From the simulation results, the shortage can be improved by increasing the number of initiation points. But increasing the number of initiation points means increasing the level of synchronous explosive circuit, and the bigger the explosive circuit level is,the larger the synchronous time deviation is, which would have adverse effects on the output waveform of the annular booster pellet. The results of numerical simulation show that the initiation capacity of the annular booster pellet under eight-point-synchronous explosive circuit is much better than that under four-point in the case of ensuring smaller deviation of the synchronous time. By comparison the radial convergence processes of annular booster pellet between four-point and eight-point-synchronous explosive circuit, the convergence time of eight-point initiation is 0.2 µs ahead of that of four-point, and the time reaching maximum convergence pressure is 0.4 µs ahead of that of four-point, and peak pressure is 9.24 Gpa bigger than that of four-point, and convergence end time is 0.199 µs ahead of that of four-point, and at the end of the convergence, peak pressure in the center of the booster pellet bottom is 2.46Gpa bigger than that of four-point. Since the detonation wave of annular booster pellet under eight-point initiation has good axial consistency, the speed of convergence to the center is quick and the pressure is high. The number of initiation points not only affects the axial output, but also has a significant effect on the convergence process in the center of the booster pellet. In all, the initiation capacity of the annular booster pellet under eight-point-synchronous explosive circuit is much better than that under four-point in the case of ensuring smaller deviation of the synchronous time. ?¨1????????????±??·??×°???á?ò??±??????????????á?? ?¨?????????????????ì???·????±????ù????????±?????????????·?????????????±??ú?í??????????±????ù?è???á???í????????????????????±??·????±????ù?á?ò??±?????????????????±????¨???????????????±??±????±t??1.198??s?±???à????????±????¨·??ú?±??×?????????·??????????±t??1.299??s?±??±????¨???°???¨?ó??????×°??10mm???????????????±???¨?ó????×????÷?????¨??×????¨·????¨?????????à??0.65mm???±t??2.500??s?±??±????¨???°???¨?ó??????×°???×???????±???¨?ó????×??????????????? ?¨2????????±??·?????ò???????????????? ????????????±??·?????ò?????????????????á???????????ì???·????±????ù?????????ò???????????·????±????ù???????????????±??±???±????¨?????á?ò?????????±???????·????±????ù???ò???????±±????¨???????ù??±í???±?????????????é?????????????÷?¨?????ò???ù?????á??????????×??á?ò±????¨???????????ò???ù?????????????÷?¨?????????????±t=2.400µs?±???ò?·????±????ù?????????????÷?¨??????×????????????????????????±±????¨???á?ò???ù±????????ù?×???????????ù?????????????÷?¨?????????ò???????????±?????á?ò±????????¨?±????????t=2.900µs?±??????????????????×??ó????Pmax=32.39Gpa???±t=3.799µs?±?? ?·????±????ù?????á??????????×??ó??????????29.12Gpa?????ù?????????????????????·????±????ù?????÷×°??????±??? °?????????±??·????±????ù??t=0.799??s?±??????·?????????25.43Gpa??????????t=1.299µs?±, ????·?????????25.90Gpa??±???????±????¨?°?????????ù10mm?????????±???¨????????????°?????????±????¨??????????????????????±????¨?????±?·??×°????????±??±????????±????·??×°???á?ò?¨?????????????????????????á?ò??±?????????????·????·????±????ù??±??????????ó??×??????????á??????????????±?????????????????????×?????????????±???????????×???????????±???????????????±??????????????ó???????????????±???????????ó?????????·??×°?????????¨???ú?ú?????°?ì???ò???????ù???????é?????á???????????á??????????±??¤???????????±?????????é??????°?????????±??·????±????ù???á?ò??±???????????????????±??·????±????ù?? ??±???????°?????±????·????±????ù?????????ò??????????°?????±??·???????á???????±?????????á?°0.2µs??????????????×??ó???±???á?°0.4µs??????·??????????ó9.24Gpa???????á???±?????????á?°0.199µs???????á???±???ù?×??????????·??????????ó2.46Gpa??????°?????±????·????±????ù±????¨?á?ò???????????ò???ò?????????????ì????????????????????±??????????°?ì?á?ò?????????±?????ù?????????????????????°?ì??×?????????°?????±????·????±????ù????±??????ó???????? [ ??×???????×? ?ì????×? ] |
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4樓2012-03-20 22:40:41
2樓2012-03-20 14:41:53
curton
主管區(qū)長(zhǎng) (文壇精英)
Hello Kitty
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專家經(jīng)驗(yàn): +151 - 翻譯EPI: 1
- 應(yīng)助: 195 (高中生)
- 貴賓: 49.033
- 金幣: 81392.2
- 散金: 25181
- 紅花: 225
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- 帖子: 20300
- 在線: 15504.3小時(shí)
- 蟲號(hào): 950839
- 注冊(cè): 2010-01-30
- 性別: GG
- 專業(yè): 電力電子學(xué)
- 管轄: 科研生活區(qū)
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
hls85915: 金幣+20, 翻譯EPI+1, ★★★很有幫助, 只能給你20個(gè)BB。請(qǐng)笑納 2012-03-21 16:42:38
hls85915: 金幣+20, 翻譯EPI+1, ★★★很有幫助, 只能給你20個(gè)BB。請(qǐng)笑納 2012-03-21 16:42:38
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can be observed by 修改為 observe by，科技論文最好不要出現(xiàn)被動(dòng)。 is simultaneously initiated 修改為 simultaneously initiate，同上。 in the axial direction and also along the radial direction of 這個(gè)also可以去掉。 propagate 出現(xiàn)多次，能不能用相同意思的詞代替。 At that time 貌似科技論文中一般用then basically 基本的，科技論文中不用模棱兩可的詞，建議去掉 high pressure 建議修改成 high-pressure By comparison of the two waveforms when the detonation waves reach at 10mm of the booster pellet height, it can be seen that the waveform of annular booster pellet under eight-point-synchronous explosive circuit is much better than that of under four-point. 太長(zhǎng) 句型太復(fù)雜，科技論文不需要。 When the annular booster pellet height is unchanged, the axial waveform of the annular booster pellet under four-point-synchronous explosive circuit is hard to be smooth, so that the axial output energy is not strong, having a great shortage to enhance the initiation capacity of the annular booster pellet. 同上。 can be improved by 建議修改成 improve by 科技論文不需要被動(dòng)。 But increasing the number of initiation points means increasing the level of synchronous explosive circuit, and the bigger the explosive circuit level is,the larger the synchronous time deviation is, which would have adverse effects on the output waveform of the annular booster pellet. 太長(zhǎng)，建議修改。 in the case of 建議修改成 for ， 簡(jiǎn)單。 By comparison the radial convergence processes of annular booster pellet between four-point and eight-point-synchronous explosive circuit, the convergence time of eight-point initiation is 0.2 µs ahead of that of four-point, and the time reaching maximum convergence pressure is 0.4 µs ahead of that of four-point, and peak pressure is 9.24 Gpa bigger than that of four-point, and convergence end time is 0.199 µs ahead of that of four-point, and at the end of the convergence, peak pressure in the center of the booster pellet bottom is 2.46Gpa bigger than that of four-point.92個(gè)單詞，很嚇人的，建議修改成短句 |
3樓2012-03-20 21:49:06
curton
主管區(qū)長(zhǎng) (文壇精英)
Hello Kitty
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