皮圈短彈簧 check spring: 調(diào)整彈簧; 控制彈簧; 穴播閥彈簧; 止動(dòng)彈簧check valve ball spring: 止回閥球彈簧check valve lever spring: 止回閥桿彈簧check valve spring: 單向閥彈簧; 止回閥彈簧check-valve ball spring: 止回閥球彈簧下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯