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.采用鋁箔作為標示材料，用不同旋向、不同螺距的攪拌針進行了攪拌摩擦焊試驗。Friction stir welding was conducted by using four types of pin and copper foils, piled up with aluminum plate alternately, as a tracer material.采用鑲嵌異種材料作為標識材料的方法，用不同攪拌針形狀的攪拌頭，進行了攪拌摩擦焊試驗。 返回 tracer pin