结果表明, 苯乙烯、丙烯腈的加入能提高N- 环己基马来酰亚胺的反应活性.The results showed that the addition of St AN , the activity of CHMI was enhanced.通过锂试剂的方法,合成了三氟甲基苯基环己基酮化合物,反应产率达到60%.Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium ...
Front and back sleeve seams place along armhole seam, 8?正面和背面套沿袖窿缝接缝的地方, 8?Coal seams intermixed with iron ore.煤层和铁矿混杂在一起.All of our hospitals are bursting at the seams; we have to build new ones urgently.所有的医院都人满为患,我们迫切...
We watched the harbour and then the coastline fade away into the morning mist.我们凝望着港口，只见海岸线渐渐隐于晨雾之中。The colour of the cloth will fade away little by little.这布的颜色会一点一点褪掉的.Disease is disgruntled , resemble basking in damp ...
Cruz had to scavenge information from newspapers and journals.克鲁兹不得不从报纸和杂志中搜寻信息。He published widely in scientific journals.他在科学期刊上广泛发表文章。Which journals does the library subscribe to?图书馆订有哪些报刊？...