vacuum metal

常見例句

雙語例句

• Identifying the vacuum property of metal materials is very helpful to the manufacture of electronic devices.
  鑒別電真空用金屬材料真空性能的好壞，對電真空器件的生產(chǎn)有直接幫助。
• Purifying selenium by vacuum distillation. Metal selenium purification is on the base of different elemental volatility.
  真空蒸餾提純硒利用元素的揮發(fā)性不同進行金屬硒的提純。
• According to the technology and configuration of the vacuum braze welding metal honeycomb parts, the technique of ultrasonic inspection for them was studied.
  針對金屬蜂窩真空釬焊件的工藝及結構特點，探討了利用超聲波法對其質量進行檢測的可行性和可靠性。

權威例句

• Lin, Justin, and Marie examined the semi-conductor industry, where the initial reliance on vacuum tubes was replaced by bipolar technology, which in turn was replaced by complementary metal-oxide semiconductors (CMOS).
  FORBES: Big Firm Innovators: What Large Companies Can Do to Be Just as Innovative as Small Entrepreneurial Ones
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