reactive adj. 1.反動的,倒退的,復(fù)古的。 2.反應(yīng)的;反作用的;反沖的;【電學(xué)】電抗的;【化學(xué)】反應(yīng)性的,活性的。 a reactive current 無效電流。 reactive power 無功電力。 reactivity n. adv. -ly ,-ness n.
The rotary transmission case can achieve forward , reverse gear , which is fit for catching & revolving operation of different kinds of drill pipe ; reactive torque release device ensure drill pipes deformation releasing safety in the well drilling process 轉(zhuǎn)盤傳動箱可實現(xiàn)正、倒檔,適用各種鉆桿扣旋轉(zhuǎn)作業(yè),反扭矩釋放裝置保證鉆井過程中鉆桿變形能安全釋放。
Abstract : factors causing the failure of the rod string in a screw pump well include rod with minor od being used , defects in the rod body produced in manufacturing and service , excessive torque caused by plugging and reactive torque on the rod string , and excessive shearing stress on the rod thread 文摘:造成螺桿泵采油井抽油桿桿柱斷裂、脫扣和擼扣的主要原因有桿體外徑選擇偏小,桿體制造或使用過程中產(chǎn)生缺陷,堵塞扭矩過大,反扭矩大于螺紋聯(lián)接扭矩以及抽油桿螺紋牙受剪應(yīng)力過大等。