backing vacuum 中文意思是什麼
backing vacuum
解釋
前級真空-
The series h pump can be a backing pump when combined with another high vacuum smelting, vacuum drying, vacuum impregnate and high vacuum simulation testing, ect
廣泛地應用於真空冶煉、真空乾燥、真空浸漬、高真空模擬試驗以及其他真空作業上。 -
Vacuum technology. vapour vacuum pumps. measurement of critical backing pressure
真空技術.蒸氣真空泵.臨界托持壓力的測定 -
Vapour vacuum pumps - measurement of performance characteristics - part 2 : measurement of critical backing pressure
蒸氣真空泵.性能特性測量.第2部分:臨界托持壓力的測量 -
Study on the backing velocity of the vacuum booster
汽車真空助力器回程速度的研究
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