standard compaction unit标准: standard; criterion; benchma ...充填: filling; stowing; backfillin ...工具: tool; means; implement; appl ...充填工具: packing means; packing tool皮碗式充填工具: down-cutool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:标准充填工具，即可在微信中查询翻译
