The carbene also reacts with alcohols.碳烯也可与醇反应.New , sterically demanding 1, 3 - dialkylimidazolinium salts used as N - heterocyclic carbene precursors were synthesized and characterized.合成并表征了一种新型的有空间需求的N - 杂环卡宾前驱体1, 3-...
About two leagues beyond the summit of that hill above the village.'村边山顶那一面,大约两个里格. ”I knew what I could do in the minor leagues, I just wanted a chance to prove myself in the majors.我知道自己在职业棒球小联合会中实力如何，我只是想有个机会能在职业...
The plug broke, exposing live wires.插头坏了，带电的电线露在外面。Plaster had fallen away in places, exposing the brickwork.有些地方的灰泥脱落了，露出了砖。He smiled suddenly, exposing a set of amazingly white teeth.他突然一笑，露出一口雪白的牙齿。...