无金属化孔单双面印制板分规范的英文

• sectional specification:single and double sided printed boards with plain holes

• 无:    not have; there is not; be w ...
• 金属:    metals genus
• 化:    change; turn; transform
• 孔:    hole; opening; aperture
• 单:    singular number fate; destin ...

例句与用法

1. Sectional specification : single and double sided printed boards with plain holes
   无金属化孔单双面印制板分规范