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...
我们听到隔壁房间嗡嗡的谈话声.We hear the hum of conversation from the next room.蜜蜂振翅发出嗡嗡的响声.The bee buzzed its wings.森林里的热气和嗡嗡的声音让他不知不觉便睡着了。Before he knew it, the heat and hum of the forest had lulled him to sleep....
Investment could dry up and that could cause the economy to falter.投资可能会中断，而这会引起经济衰退。He bought an investment property for $100,000 and put down $20,000.他以10万美元买下一处投资性地产，并支付了2万美元的定金。The job needs someone with a good track...
There was a vicious and vitriolic attack on him in one of the Sunday newspapers two weeks ago.两周前一份周日报纸刊登了一篇对他进行尖酸恶毒攻击的文章。She was not above purveying make - up tips through ladies'columns in newspapers.她根本不屑于向各大报社的女...
我们认为偶然间撕碎一只纸盒,只是一件很小的损失而已.We counted an occasional torn box a small loss.装牛奶的硬纸盒壁常常向外弯曲.The sides of a cardboard carton of milk will often curve outwards.他把那些纸盒捆扎在一起.He lashed the cartons together....