常見例句雙語例句Lower water suction head.降低吸水高度。Please take vacuum pump or foot valve to prime if you require the pump to work under the suction head condition.如果用戶需要泵在有吸程狀況下使用,請采用真空泵或底閥引水。jmby-pump.comThe relation ship of net positive suction head of pump versus silt-content in silt- leder water flow is analyzed and established theoretically.從理論上分析推導(dǎo)了抽送含沙水流時泵的汽蝕余量隨含沙量的變化關(guān)系。 返回 suction head