Imbibition is thus displacement due only to capillary forces.于是,吸吮是仅仅依靠毛细力的一种驱替.Introduced colophony of tall water imbibition domestic and international production, market condition.介绍了高吸水性树脂国内外生产 、 市场情况.The result is ve...
人员的裁减和服务质量的下降之间显然是有联系的。There is an unquestionable link between job losses and deteriorating services.有可靠证据表明日光曝晒与皮肤癌之间有联系。There is convincing evidence of a link between exposure to sun and skin cancer.高失业率与物价上涨不一定有联系.Hig...
Gloria is probably the most down to earth personI've ever met.格洛丽亚也许是我见过的最脚踏实地的人了。To the best of my knowledge, Gloria did not make these comments.据我所知，格洛丽亚没这么说过。Gloria runs a hairdressing salon.格洛丽亚经营着一家发艺沙龙。...
Amphoteric monomer is prepared with acrylic acid , dimethylamine and chloroethanol by Mannich reaction.以丙烯酸、二甲胺、环氧氯丙烷为原料,通过曼尼希反应制得两性离子单体.Biological activities of amphoteric surfactants to higher or lower organisms were i...
These difficulties have been overcome without detriment to performance.这些困难都已在不影响业绩的情况下得到了克服。He sits up very late to the detriment of his health.他常常熬夜,这对他的健康不利.Smoking is a detriment to one's health.吸烟危害健康....
Thus , this reduced temperature of reaction and increased the rate of acetophenone.降低反应温度,提高了苯乙酮的收率.Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法....