意思翻译
加重杆
相关相似weighting down───使负重；给……加负担
lightning rod───避雷针
lightning rods───避雷针
fighting top───战斗桅楼
fighting word───容易引起对抗的话
fishing rod───n.（有绕线轮的）钓鱼竿
lighting on───偶然遇见（碰见，发现）；停落于
weighing down───体重下降
weighing in───加入比赛；比赛前量体重；参加辩论
双语场合用语Method Large diameter oil tube and weighting rod are adopted to decrease lifting resistance of crude oil and to increase lowering-in energy of the string.───方法采用增大油管直径和下加重杆技术，来减少油流上升阻力和增大杆柱下行动力。
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