They are acrylaldehyde hydration, ethylene oxide formylation and biological zymolysis methods.即丙烯醛水合法, 环氧乙烷甲酰化法,生物发酵法.Porous adonic aluminum oxide templates are widely used to fabricate nanowires or nanotubes of many mat...
锕射气氡的一种放射性的, 惰性的和气态的同位素, 其半衰期为3.A radioactive, inert, gaseous isotope of radon, with a half - life of 3.92 seconds.讨论了该离子交换法在分离锕 - 镧系元素上应用的可能性.The possibility of its potential application is discussed for separation of a...
Fluctuating prices usually base on a fickle public's demand.物价的波动往往是由于群众需求的不稳定而引起的.In many applications a fluctuating DC current is undesirable.在许多应用场合,波动的直流电是讨厌的.Widely fluctuating exchange rates may adversely affe...
...signs of the party's rapid retreat to the political margins.该党在政治上迅速失势的种种迹象After several reverses the enemy was forced to retreat.几次失败后敌军被迫后撤.Cockburn decided it was time to beat a hasty retreat.科伯恩认为到了该紧急撤退的时候了。...