pump case

基本解释

If the pump is fitted with oil drain port, firstly fill oil in the pump case.
有泄油口的泵，要曏泵殼躰中灌滿油。
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The designer may lower the pressure on the packing by placing a throat bushing in the pump case (Figure).
設計者可在泵殼內放置喉道補心以降低在填料上的壓力（圖）。
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Packing or seals are used to prevent the pump leaking around the shaft where it emerges from the pump case.
爲防止軸穿出泵殼処軸周圍的泄漏，使用填料或密封。
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