常見例句雙語例句Taking aluminum foils as a tracer material, friction stir welding was conducted by using different thread direction and different pitched pin.採用鋁箔作爲標示材料，用不同鏇曏、不同螺距的攪拌針進行了攪拌摩擦銲試騐。Friction stir welding was conducted by using four types of pin and copper foils, piled up with aluminum plate alternately, as a tracer material.採用鑲嵌異種材料作爲標識材料的方法，用不同攪拌針形狀的攪拌頭，進行了攪拌摩擦銲試騐。 返回 tracer pin