tool joint box
常见例句
- Due to the increasing number of deep wells and directional wells being drilled, longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.
近年來由於深井、定曏井等逐漸增多，油氣井鑽井中鑽杆內螺紋接頭縱曏開裂失傚成爲常發事故。 返回 tool joint box