基本解釋閥桿密封;芯軸密封英漢例句雙語例句Describing several structures of stem seal and existent problems.闡述了閥桿密封的幾種結(jié)搆及存在的問題。The backup seal is secondary to the main stem seal assembly (20) in the bonnet (12).備用密封件是閥帽(12)內(nèi)主閥桿密封組件(20) 的二級密封。ip.comThe stem seal of a feed water control valve uses expanded graphite packing in order to produce friction and to economize on energy for the control valve working.電站鍋爐給水調(diào)節(jié)閥的閥桿密封採用柔性石墨填料,既降低了摩擦力,又爲(wèi)調(diào)節(jié)閥的運行節(jié)約了能源。stem seal更多例句詞組短語短語Stem -Seal-Ring 閥桿密封圈valve stem seal 氣門油封;密封活塞桿STEM SEAL VALVE 氣門油封lower stem seal 下閥桿密封stomvery single stem seal 本躰閥桿密封stem seal更多詞組專業(yè)釋義物理學(xué)閥桿密封