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英語留級生銅蟲 (小有名氣)
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[求助]
求大神幫忙翻譯一小段英語片段,急急急
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INTRODUCTION It is well known that the expansive behavior of in situ magnesium aluminate spinel (MgAl2O4)1 can generate two opposite behaviors when formed in the refractory castables’ matrix: if, on one hand, it can close joints and generate compressive stresses2, on the other it can also spoil the castables’ mechanical and corrosion / infiltration properties if poorly designed. Considering these aspects, great efforts have been placed in order to produce spinel-forming castables with a designed permanent expansion, taking into account the grain size of the reactants, the binder source, the presence of liquid phase and so on.Nevertheless, most of the conducted studies were usually developed considering anexpansion-free condition, which is not representative of the service structuralconditions that allow only restricted volumetric change. |

鐵桿木蟲 (著名寫手)
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引言 眾所周知,當(dāng)在耐火澆注料的基質(zhì)上形成時,原位鋁酸鎂尖晶石(MgAl2O4)【1】的膨脹反應(yīng)可以產(chǎn)生兩種截然相反的行為:一方面,它可以密縫和產(chǎn)生壓應(yīng)力【2】,另一方面如果設(shè)計不當(dāng)它也可以破壞澆注料的機(jī)械和腐蝕/滲透性能。考慮到這些方面,加倍努力為生產(chǎn)出成尖晶石澆注料,它具有永久性膨脹的設(shè)計,考慮反應(yīng)物的粒度、粘結(jié)劑來源,液相的存在等等。然而,進(jìn)行的大多數(shù)研究通?紤]無膨脹條件的開發(fā),這并不代表當(dāng)務(wù)的結(jié)構(gòu)條件,只允許限制體積變化。 |
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