Adamantane and bicyclo ( 222 ) octane are predominantly Chlorinated at the bridge heads by this procedure.金刚烷和二环〔222〕辛烷主要是按照这个程序在桥头氯化.Using tendo - tetrahydrodicyclopentadiene as raw material and AlCl _ 3 - trace water s...
一种气体的密度the density of a gas有些密度大的物质容易让电流通过.Some dense substances allow electricity to flow through them freely.水银的密度比水大得多.Mercury has a much greater density than water....
I once bought a thingummy out of one of those catalogues.我曾经买过那些目录里的一样东西。Catalogues of our books will be sent on request.书籍目录承索即寄.Catalogues of our books will be mailed on request.书目承索即寄....
There were also remnants of militarism.还有军阀主义残余.He had accused them of deliberately reviving militarism.他曾指控他们蓄意复活军国主义.Where were the forces which could be rallied against fascism and militarism?究竟到哪里才能找到可以团结的反法西斯和反军国主义的...