shielded-metal-arc welding中文什么意思

〔钝度〕遮蔽金属电弧銲接

• shielded metal arc welding:    气体保护金属极电弧焊; 手工电弧焊; ...
• shielded metal-arc welding:    保护式电弧焊; 屏蔽金属弧焊; 气保 ...
• gas shielded metal-arc welding:    气体保护金属弧焊