以酸性黑油为原料合成咪唑啉.The imidazoline was synthesized from black acid liquid.目的:探索出在咪唑啉酮2号位引入2-巯基苯骈噻唑的适宜反应条件.Objective To optimize the reaction condition of 2 - mercaptobenzothiaozole ramification.以环烷酸、有机胺为原料合成咪唑啉油溶性缓蚀剂.A new ty...
Mack made his voice quiver with fear on these last two words.麦克说出最后这两个字时，吓得声音颤抖。The little girls had locked themselves in upstairs because Mack had been mean to them...小姑娘们把自己锁在楼上，因为麦克对她们很刻薄。Mack knew this passage by hea...
A train of antiquated coaches was waiting for us at the siding.一列陈旧的火车在侧线上等着我们.I've built this siding four times.我设计这条支线已有四次了.The train was switched into a siding.这列火车已转辙至傍轨....
We draw a conclusion that BSG can be a carricer for NCF.BSG+NCF优于单纯NCF. 证实BSG可作NGF的载体.I find it difficult to draw a conclusion on that.我觉得此事难下结论.It may draw a conclusion that the results coincide with the truth.得出计算结果与实际...
So it is very important to choose and utilize idlers.因此,合理的选择和使用托辊非常重要.Some street idlers were making Fescennine comments on passing girls.街上一些游手好闲之徒正在封路过的女孩们用猥亵言语评头论足.I have no time for idlers.我讨厌游手好闲的人....
Rattlesnake skin is used for fancy bags and purses.响尾蛇皮被用来制作精美的提包和钱包.He had been bitten by a rattlesnake.他被响尾蛇咬过。We saw a real live rattlesnake!我们看到一条真的响尾蛇！She killed with a hoe the biggest rattlesnake ever seen in this ...