vacuum metal
常見例句
- 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(jìn)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(jié)構(gòu)特點，探討了利用超聲波法對其質(zhì)量進(jìn)行檢測的可行性和可靠性。 - 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).
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