对于蛋白质的结晶，沉淀剂主要在溶剂上产生作用。For protein crystallization, the main impact of precipitant is on the solvent.这种蜡质属于乙醇有机溶剂的萃取物.The waxes are classed as alcohol or organic solvent extracted materials.在醇溶剂中,它不能被硼氢化物还原.It is resista...
房间里阴暗、清冷，静悄悄的。The room was dim and cool and quiet.房间里静悄悄的，只有她的啜泣声。The room was silent except for her sobbing.一阵悄悄的低语声传遍了整个教室。A quiet murmur passed through the classroom....
I can't stand the cool detachments from my antagonists!我不能忍受来自我那些反对者的冷眼!OBJECTIVE: Progress and clinical application of leukotrienes ( LTs ) receptor antagonists in the treatment of asthma were summarized.目的: 评价 白三烯...
A police officer was speared to death.一名警官被刺死了。The warriors speared the man to death.武士们把那个男子戳死了.He lit a cigarette, and speared the match in the sand.他点上了一支烟, 随手把火柴往沙子里一插....
“ 俄国历史的新阶段开始了 ”" A new phase in the history of Russia begins "我们应该准备转变到新阶段去.We must be prepared to go over to this new stage.防沙 治沙 进入了工程化、规模化建设新阶段.The sand - control project has entered a new stage on a gigantic scale....
The handrails must be installed where the falling risk existing.只要存在有坠落危险的地方,就必须安装栏杆.We offers quality staircase and stair parts including tread board , baluster, railing, handrails and specs.提供高级实木楼梯及踏板, 栏杆,立柱, 扶手等配件.PP...
And above 90 % spontaneous combustion occurs in goaf.其中90%以上自然发火发生在采空区.The coal spontaneous combustion in the goaf is one of the main coal disasters.采空区煤炭自燃火灾一直是我国煤矿的主要灾害之一.The method of gas drainagecoal seam gas drainag...
木料被锯成大块的薄板。The wood was cut into large sheets of veneer.环并不是看上去那样的固体薄板.The rings are not the solid sheets they appers to be.松木桌面镶有一层桃花心木的装饰薄板.The pine table top is overlaid with a mahogany veneer....