我们知道人民对幸福生活的展望.We may get a clear perspective of the people's happy lives.展望新年，巴西人心情沮丧，甚至连总统都承认明年困难重重，不容乐观。Brazilians look gloomily forward to a New Year that even the president admits will be grey and cheerless.在我的...
The streets of New York City are numbered in consecutive order.纽约市街是按序编号的.He worked mainly in New York City where living space is notoriously at a premium.他主要在纽约市工作，那儿的住房出了名地昂贵。He traded a job in New York City for the li...
精确地预计弯头和管件的影响尚无方法可循.No methods are available for the accurate prediction of the effect of bends and fittings.我们常用弯头(管、兰、通、小关)为一种管件.We usually use elbow flangetee, reducer as a kind of pipe fitting.在人井2中,将弯头卸下,便于设备进入.Debu...
Finally the structures were released in a 49 % HF etch.最后在49%F中腐蚀形成这些结构.More often , all of the materials etchant have a finite etch rate.剂中的材料都具有一定的刻蚀速率.Can some one suggest a suitable etch or sequence of etches to achi...