derrick rig

基本解釋

The most obvious part of a drilling rig is called "a derrick".
鉆機中最顯眼的部件叫做“井架”。
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The degree of reliability of rig derrick and substructure in different time is obtained by means of reliability evaluation of the zero failure data.
通過對石油鉆機井架、底座無故障數(shù)據(jù)的可靠性評定，求得了不同時間狀態(tài)下符合實際的可靠度。
This paper presented an analysis and calculation of internal force of the structure for A-shaped derrick with drilling rig of type SPS600 under a worst load possible.
本文對SPS600型鉆機A 形鈷塔在可能承受的最不利載荷下結(jié)構(gòu)的內(nèi)力作了分析和計算。這一分析計算是從鉆塔的工作與非工作兩種狀態(tài)分別進(jìn)行的。