weldor
美 ['weld?(r)]
英 ['weld?(r)] 
英漢解釋
例句
Pulmonary samples taken by bronchoscopy from 10 weldor patients were observed under electron microscope.
10例電焊工塵肺病人經支氣管肺活檢的樣品進行電鏡觀察。
How to strengthen the technique certification exam and management for handworked arc weldor
如何加強手工電弧焊工的考證和管理