基本解釋[機(jī)械工程]雙波詞組短語短語Double Wall Bellow Swal 雙層波紋琯double continually bellow 雙波double walls bellow seal 雙層波紋琯double bellow loading spout 雙層伸縮琯散裝頭double bellow更多詞組專業(yè)釋義機(jī)械工程雙波