The adsorption behaviour of cephalexin on hanging mercury electrode surface is reported.报道了头孢氨苄在悬汞电极表面的吸附行为.The advances in the process technology for the enzymatic synthesis of cephalexin are reviewed.综述了酶法合成头孢氨苄的工艺方法研究...
Twelve extremely good-looking, smooth young men have been picked as finalists.12名特别漂亮精明的青年男子被选为参加决赛的选手。He was smart and well groomed but not good looking.他仪容整洁，穿戴漂亮，就是人长得不好看。His friend was less good-looking, but a lot mo...
The causes of tarnishing gold and silver - plated connectors were studied respectively.分别探讨了接插件镀金和镀银层变色的原因.Bright tin electrodeposits on copper wire are susceptible to tarnishing.铜线材经光亮镀锡后易产生腐蚀变色.Do they not realize thei...
对于两个七十几岁的人来说，这段路太远了。It's a long way to go for two people in their seventies.许多十几岁的孩子既缺乏自信又不够懂事，所以感情上十分脆弱。Lacking self-confidence and maturity, many teenagers are left feeling very vulnerable.她母亲把她四十几岁时穿的所有衣服都包起来烧掉了。...
TWO NEW SPECIES OF THE GENUS LEPTOTROMBIDIUM FROM JIANGXI, CHINA ( ACARI: TROMBICULIDAE )江西省纤恙螨属二新种 ( 蜱螨亚纲: 恙螨科 )Objective : To illustrate the killing effects avermectin on Leptotrombidium deliense on tropical coral isla...