服用大量维他命A可改善暗光适应.Taking large doses of vitamin A can improve one's dark adaptation.海洋糖原与微量矿物组合,可改善皮肤活力,紧致肌肤.The mineral micro combination can improve the skin vitality and skin firmness.运用压裂工艺改造这些油藏,可改善其开发效果、制递减.Rese...
Cyclization occurs readily with dilute alkali.遇到稀碱就容易环化.Menthol was obtained from lemon eucalyptus oil via cyclization and catalytic hydrogenation.以柠檬桉叶油为主要原料经环化、催化氢化二步反应得到薄荷醇.METHODS Cilnidipine was synthesized from cin...
Ancient people made clay pottery because they needed it for their survival.古代人制作陶器是因为他们的生存需要它.The original clay pottery is a pottery, producing a simple surface, no decoration.原始陶器是泥质陶器, 制作简单,表面无装饰....
The lift started off, juddered, and went out of action.电梯开动了，接着剧烈震颤起来，然后就毫无反应了。They were trapped after the lifts went out of action.电梯出现故障，他们被困在里面了。I'm out of action with a sore back.我因背痛而不能工作....
Families have their problems and jealousies, but blood is thicker than water.家家有本难念的经，也都难免互生嫉妒，但总归血浓于水。They were divided by mutual suspicion and jealousies.他们因为相互猜疑嫉妒而不和.I am tired of all these jealousies and quarrels.我厌...