Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.In the darkness, the machine gun spat a vindictive white light like an acetylene torch.机枪在黑暗中吐出一道凶厉的白光,活象一支喷火的乙炔吹管.In the high - pressure system both oxygen and acet...
This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.论述了乙烯基醚类化合物的三种主要制备方法乙炔法 、 脱卤化氢法和缩醛热分解法.Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.In th...
I have no qualms about recommending this approach.我会毫不犹豫地推荐这一方法。I don't see my way clear to recommending you for the job.我感到不便推荐你去担任那项工作.The jury added a rider to their verdict recommending mercy.陪审团在裁决后加了一条建议宽恕的附文....
...a small flock of bleating ewes and lambs.一小群咩咩叫的母羊和羊羔Ewes are having fatter lambs, and more of them every season.母羊生下的小羊比较肥壮, 每季生出的小羊也比较多.The lambs capered in the meadow.小羊在草地上蹦蹦跳跳.The pair surrendered to him like lam...