dry ballast干: trunk; main part压载: ballast物: thing; matter; object干压载物；干压舱物: dry ballast压载物: ballast weight; ballasting; blst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:干压载物，即可在微信中查询翻译
