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satanwy木蟲 (正式寫手)
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[求助]
漢譯英一段話，謝謝~
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| 從圖4(a)、(b)中可以看出，改性劑濃度越低，靜曲強(qiáng)度和彈性模量在不同樹高位置提高率越均衡合理。而高濃度改性劑（改性劑濃度為6%）時(shí)，在不同高度位置力學(xué)性能有較明顯的遞減。這可能是低濃度的改性劑不易在木材導(dǎo)管及孔隙內(nèi)聚集并固化，而當(dāng)改性劑濃度升高時(shí)，改性劑極易在短時(shí)間內(nèi)就聚集在樹底部的導(dǎo)管與孔隙內(nèi)，固化并阻塞了改性劑往樹梢方向的流動(dòng)，從而影響了改性劑在立木內(nèi)部的均勻分布，影響了靜曲強(qiáng)度及彈性模量的變化率。同時(shí)，從圖4(b)、(c)可以看出，在加入聚乙二醇后，靜曲強(qiáng)度及彈性模量在不同樹高位置的變化率更均勻，變化梯度不明顯。其中在樹底部位置與樹干其它位置的變化率沒有明顯的遞減，反而在加入聚乙二醇后，往樹梢位置，樹干的力學(xué)強(qiáng)度變化較樹底部有更顯著的提高。這可能是加入聚乙二醇后，作為一種表面活性劑，其能有效的使改性劑在樹干內(nèi)部擴(kuò)散，而不易于在導(dǎo)管及孔隙內(nèi)聚集固化，阻塞改性劑往樹干上部的擴(kuò)散，使得改性劑可以在改性過程中不斷的在樹干中上部富集，從而使得樹高高度越大的位置靜曲強(qiáng)度和彈性模量變化率越大。 |
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3樓2014-03-14 20:54:47
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
真強(qiáng)必勝: 金幣+2, 哇哇哇 2014-03-16 11:14:10
satanwy: 金幣+300, 翻譯EPI+1, ★★★★★最佳答案, 謝謝！�。� 2014-03-17 08:47:22
真強(qiáng)必勝: 金幣+2, 哇哇哇 2014-03-16 11:14:10
satanwy: 金幣+300, 翻譯EPI+1, ★★★★★最佳答案, 謝謝！�。� 2014-03-17 08:47:22
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MOR (static bending strength or modulus of rupture) ， MOE (modulus of elastic), It can be seen from Figure4(a) and 4(b)that the lower the concentration of the modifier, the more reasonable the MOR and MOE improvement rate of different tree height positions . At high concentrations modifier (modifier concentration of 6%), the mechanical properties at different height locations much obviously decreased. It might be that low concentration modifier is difficult to aggregate and cure in wood pores and high concentration modifying agent is easily collected in the catheters and pores in a short time , which solidified and clogged the modifier's flow to the direction of the treetop, thus affected the uniform distribution of modifiers inside the standing tree and the change rate of the MOR and MOE .It can also be seen from Figure 4 (b) and 4 (c)that with the addition of polyethylene glycol, the change rate of MOR and MOE at different height positions become more uniform and less obvious . Where in the bottom of the tree trunk and other locations ,the rate of change has no significant decrement. While the mechanical strength of the tree trunk has more significant improvement toward the treetop than the bottom after the polyethylene glycol was added to . It might be that the added polyethylene glycol, as a surfactant, can effectively diffuse the modifier inside the trunk. So it is not easy for the modifier to aggregate in the pores and catheter and cure. The upper blocked modifier diffusion promoted modifier enrichment in the upper tree trunk in the process of modification so that the change rate of MOR and MOE of greater tree height is much greater. 供你參考，一直以為樹是高科技詞匯，實(shí)際上好像就是樹，應(yīng)該沒錯(cuò)吧！ |
2樓2014-03-14 20:53:12
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