launching girder曳: drag; haul; tug; tow进: advance; move forward; move ...吊梁: hanging beam; suspension gir ...机: machine; engine曳进: pulled forward下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:曳进吊梁机，即可在微信中查询翻译
