To indicate the feasibility of acetic ester carboxylation process in China based on making process comparison.通过对各种生产工艺的对比,提出了醋酸甲酯羰基化工艺在我国的可行性.The accepted commercial process is based on 2, 4 - difuloroaniline, through c...
她捧起疏松的泥土，任其缓缓地从指间漏下。She gathered loose soil and let it filter slowly through her fingers.水慢慢流走了，渗入了疏松的土壤。The water slowly drained away, down through the porous soil.疏松的覆盖物在土壤表面起了隔热的作用.A loose mulch acts on the surface as...
The spectre of neo-fascism, as he put it, was stalking the streets of Sofia and other big cities.用他的话来说，新法西斯主义的幽灵正在索非亚和其他大城市中游荡。Sofia was attractive and formidably intelligent.索菲娅很有魅力，而且才智过人。Sofia Petrovna co-opted Natas...
Some clamps that had held the device together came undone.用来将装置夹在一起的一些夹子松开了。You beg him to try just one spoonful, and he clamps his mouth shut.你求他就尝一匙，可他就是不张嘴。Torsional microslip at the clamps results in spurious torques...