名词
中文翻译：焊接预热同义词
同义词：
['welding preheating', 'welding heat up']
例句：
-
1. Before welding, it's important to preheat the metal to ensure a strong bond.
在焊接之前，重要的是要对金属进行预热以确保牢固的结合。
-
2. The welding process requires precise temperature control during the preheating phase.
焊接过程需要精确的温度控制，特别是在预热阶段。
-
3. During the welding process, the welding rod is heated by an electric current before being insertedinto the workpiece for welding.
在焊接过程中，焊条通过电流加热后插入工件进行焊接。