他的办公室与其身份和阅历相称。His office was in keeping with his station and experience.有人担心他会因丑闻而辱没了身份。There were fears he would be dragged down by the scandal.死者的身份现在已经确定。The identities of the deceased have now been determined....
目的: 合成新的双-胡椒醛缩二胺类席夫碱化合物.Methods: Five Schiff bases were prepared from piperonal and diamines by condensation reaction.用胡椒醛为起始原料,经氯化 、 水解、缩合,制得血凝酸胺.After the process of chlorination, hydrolytic decomposition and condensat...
他熟练地左一拐右一拐地绕过深沟，穿过了原野。Expertly he zigzagged his way across the field, avoiding the deeper gullies.原野起伏，景色宜人。The countryside undulates pleasantly.在一望无际的原野上散布着一座座井架.Derricks are scattered here and there on the boundless pl...