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...
I walked aft until I reached the mainmast.我向船尾走去,来到了主桅前.We met with very bad weather again, in which the ship sprung her mainmast.我们又遇到非常坏的天气, 那只船弯下了它的中桅....
Precast concrete requires careful attention to the joinery between precast elements.对于预制混凝土结构物,需要十分注意预制构件间的连接.The main danger is associated with the joinery.主要危险是发生在房屋内的细木工制品.He was brought up to joinery.他被训练成细木工....