Abnormity bookbinding artifactitious, is subject to the effects of international powers.异形装订加工方法的出现, 也是受国际沓流的影响.Welding is one of the important technologies in impellers " artifactitious . "焊接是 叶轮 加工的重要工艺之一.Multilayer fi...
He had a vague impression of rain pounding on the packed earth.他隐约记得雨点打在坚实地面上的情景。Their name comes from South Africa's Afrikaans language and means " earth pig. "他们的名字源于南非的荷兰语意思是 “ 泥猪 ”.The earth should be elliptical...