Diaryl nitroxides are even more stable than the dialkyl nitroxides.二芳基氮氧化物自由基比二烷基氮氧化物自由基还要稳定.The immediate products of this reaction are alkali - metal derivatives of dialkyl phenylmalonates.此反应得到的产物为二烷基苯基丙二酸酯的碱金属盐衍生物.Th...
This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.该方法使用带有二烷基咪唑盐 、 烷基吡啶盐或者己内酰胺和脂肪酸作为反应物.Thus the term dialkyl carbonate includes, for example, methyl ethyl carbona...
They settled with Colin at the end of the evening.晚上聚会结束的时候他们和科林结清了账。He casually waved over the waitress and settled the bill.他漫不经心地向侍者挥手结账。He got his coffee, came back and settled down to listen.他喝了杯咖啡，回来后开始认真听讲。"It...
A sudden glare of headlights lit the driveway.突然一辆汽车的头灯照亮了车道。The truck's headlights were all fuzzy and ghostlike.卡车的前灯光模糊一片,鬼火一样.He lost his temper after a driver flashed her headlights as he overtook...一个女司机在他超车时不停...
“平”的英语可以翻译为：flat，level，on the same level，equallevel，even，be on the same level，equal[体]make the same score，tie，[语]level tone, one of the four tones in classical Chinese，draw ...
Star is your admire to go up bead jade, alpenglow wears phoenix coronet for you.星星为你佩上珠玉, 朝霞为你戴上凤冠.As I think she likes the nature, I put a flower coronet on her head.正如我认为她喜欢的性质, 我把花冠上她的头....
The first catalytic converters were called conventional oxidation catalysts.最初的转化器叫做常规氧化催化器.Many processes that are essential to the chemical industry use heterogeneous catalysts.很多重要的化学工业过程就是使用多相催化剂的.Catalysts that lowe...