The methods employed are old-fashioned and uneconomical.采用的方法很老套，没什么效益。Aspheric optical parts manufacturing is an acknowledged difficulty and it is uneconomical.非球面光学零件加工是当前国内外公认的难题.The methods employed are old-fashioned...
The boom of the 1980s led to a taste for petrol-guzzling cars.20世纪80年代的经济繁荣使人们喜欢上高油耗的汽车。The kids seem to be guzzling soft drinks all day.孩子们似乎整天都在猛喝汽水。He's been guzzling beer all evening.整个晚上他都在狂饮啤酒....
a manuscript reproduced in facsimile精确复制的手稿This a facsimile edition of an eighteenth century book.这是一本18世纪书籍的复制版.This is a facsimile edition of an eighteenth century book.这是一本18世纪书籍的复制版。...
In order to strengthen corona effect, arista electrode used as substitute for grid electrode was presented.为了加强电极电晕效果, 提出了用芒刺电极代替栅网电极.Wires criss-cross between the tops of the poles, forming a grid.电线杆顶端的电线相互交错，形成电线网。Gri...
His critics say he's just being silly and petulant.批评家说他就是愚蠢和任性。She could be wayward, petulant, and disagreeable.她有时也会任性 、 脾气很坏 、 很暴躁.He picked the pen up with a petulant gesture.他生气地拿起那支钢笔。...