Compound surfaces are more difficult and expensive to fabricate.复合的表面在制造上更困难,花费也更大.Small rectangular backup bars were used to fabricate the web - bottom flange connection.在腹板与下翼缘的施焊中使用小矩形挡板.Cables and towers are small an...
The sisal pulp and aramid fiber were chose to fabricate the wet paper - base friction materials.本文采用高性能芳纶纤维和剑麻纤维为原料制备湿式纸基摩擦材料.Porous adonic aluminum oxide templates are widely used to fabricate nanowires or nanotubes of ...
另一种选择是使用合成镶嵌物.The other option you have is a composite veneer.可以为截止阀 、 活塞或旋启式止回阀阀瓣提供弹性镶嵌物.Resilient inserts are available for globe, piston and swing check discs.用波形花纹装饰以波形的镶嵌物或蚀刻来装饰 ( 金属 )To decorate ( metal ) with wavy...
The fireman evacuated the guests from the burning hotel.消防队员把客人们从燃烧着的旅馆中撤出来.I saw a fireman racing to the fire.我看见一个消防队员冲入了火中。The fireman demonstrated great courage in saving the child.那位消防队员在抢救孩子的过程中,表现了极大的勇气.Fireman ba...