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...
吉内梅街始于菲茨拉德故居前。Rue Guynemer begins at the front of the Fitzgerald site.斯特兰德街是伦敦最繁华、最富足的街道之一。The Strand is one of London's busiest and most affluent streets.布鲁斯·斯普林斯汀重新组建了他的音乐团队，E街乐队。Bruce Springsteen has re-hired his...
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...