parent metal是什么意思 parent metal怎么读
parent metal的用法和样例
- After welding is complete, they shall be removed flush with the base metal without undercutting.
焊接完成后，应清除这些临时部件至与母材金属表面齐平，不得出现咬边。 - The results show that certain thickness of the base metal and the regime of heat treatment will increase the peak hydrogen concentration and promote the tendency of disbonding.
结果显示，一定的母材厚度和焊后热处理条件，使熔合线附近氢浓度峰值提高，从而使氢剥离倾向增大。
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