英语词汇“kelly safety valve”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	kelly safety valve
释义	kelly safety valve 方钻桿安全阀
随便看	vertical escape exit vertical escapement vertical exaggeration vertical excitation vertical exit vertical expansion vertical expansion joint vertical experimental hole vertical extension vertical extent vertical extent of a cloud vertical external broaching machine vertical extinction coefficient vertical fabric splitting machine vertical face vertical-face breakwater vertical face plate vertical-face wharf vertical factor vertical fading vertical falling film absorber vertical falling-film absorber vertical falling film generator vertical falling-film generator vertical fan marker beacon 人老不以筋骨为能人老不算老，心老才算老人老何曾再少年人老凭饭力，马老凭草力人老力气衰，尿尿滴湿鞋人老奸，马老滑人老奸，马老猾人老归乡，叶落归根人老心不老人老志不衰セッパクリュウザンセッパツマルセッパンセッパ詰マルセッピセッピツセッピョウセップクセップクセップン