casing hook下: below; down; under; undernea ...套管: drivepipe; annular tubes; br ...用: 40分钟跑完全程 run the course in 4 ...钩: hook下套管用具: casing appliance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:下套管用钩，即可在微信中查询翻译
