短語(yǔ)詞組短語(yǔ)pilot system relief valve 先導(dǎo)系統(tǒng)安全閥pilot controlled relief valve 可控的先導(dǎo)安全閥pilot t relief valve 導(dǎo)曏排泄閥Pilot proportional relief valve 先導(dǎo)式比例溢流閥pilot relief valve operation 先導(dǎo)安全閥的操作pilot relief valve setting 先導(dǎo)安全閥的調(diào)定remote pilot relief valve 遠(yuǎn)距離先導(dǎo)減壓閥pilot relief valve pressure 先導(dǎo)安全閥壓力pilot -operated relief valve 導(dǎo)閥控制的安全閥;液壓控制溢流閥 返回 pilot relief valve