Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin.本文研究从荆芥穗中提取回收聚苯乙烯所需的柠檬烯,其方法是溶剂萃取....
她心硬得像钉子一般, 假如你把事情搞错了,她可决不放过你.She's as hard as nails, and draws blood if you get hold of the wrong end.住在纽约一次 、 但是在纽约把你弄得心硬如石之前离开.Live in NY city once, but leave before it makes you hard.冷冰冰的﹐心硬的圣洁是自我矛盾的﹐是不可能的.Hard ,...
Bob, who had no intention of working, leaned lazily on his spade.鲍勃不想干活,懒洋洋地倚在铁铲上。She yawned, and stretched lazily...她打了个哈欠，伸了个懒腰。Elaine turned and waved her hand lazily and left.伊莱恩转过身，懒懒地挥了一下手就走了。Goldfish were swimming...
It has liver protective effect, antitumor activities, therapy of cardiovascular etc.有保肝 、 抗肿瘤 、 治疗心血管病等作用.Objective To study the antitumor effect of PSP 94 - TNF α D 11 a fusion gene.目的 探讨人PSP94和肿瘤坏死因子α衍生物11a( TNFα D11a)...