to weld a broken axle焊接一条断裂的轴Where did you learn to weld?你在哪儿学会的焊接技术？They will also be used on factory floors to weld things together.它们也可用于工厂车间，用来焊接物体。...
to weld a broken axle焊接一条断裂的轴The vacuum brazing is a kind of good weld technique.真空钎焊是一种优良的连接技术.Where did you learn to weld?你在哪儿学会的焊接技术？A beam of light produced a laser can weld metals.激光器发生的光束可以焊接金属.属类:[综合句库]-[-].It is ...
人们只能喝采自地下或者河湖的水.People can only take water from underground, the lakes and rivers.凤眼莲在城市河湖的污染与净化中的是非功过争议很大,双方意见均有部分正确,但各有 片面性.There was a heated dispute between the merit water hyacinth on purification or pollution in wa...