permanent mask 中文意思是什麼
permanent mask
解釋
固定掩模-
Qualification and performance of permanent solder mask
永久焊接面罩性能和合格鑒定 -
A distinguished committee service award from the ipc - sm - 840 committee on the qualification and performance of permanent solder mask
Trace堅持與那些開發和實施要求及測試方法的委員會合作,從而始終處於行業的領先地位。
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