... 馈通电导 feed-through conductance 馈线升压器 sucking booster 扩（量）程电阻 swamping resistance ...
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booster sucking 阴极升压器
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One of the 4 items decided at the vacuum trade meeting in 1974 was to raise the pumping speed of oil booster pump following the raise of sucking pressure.
1974年真空行业会议确定四大攻关项目之一是油增压泵对应高吸入压强提高抽速。
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