Welding is one of the important technologies in impellers " artifactitious . "焊接是 叶轮 加工的重要工艺之一.The welding conditions should always be neutral or slightly oxidizing.焊接气氛必须永远保持中性或微氧化.The welding is so smooth that you can ...
Marriage he obliquely commended ( in " Illusions " ) by arguing that even the worst marriages have compensations.他隐晦曲折地称道婚姻 ( 在《幻影 》 里 ),说是最坏的婚姻也能使人受益.The compensations for the injuries seldom yield complete satisfaction...
据报道,警察、车辆和商业经营场所均遭到袭击。Attacks were reported on police, vehicles and commercial premises.据报道在今天最新发生的暴乱中有5人丧生。Five people were reported killed today in a fresh outburst of violence.据报道,该矿事故发生率是全国平均水平的3倍。The mine reportedly...
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...