derrick

名词 derrick:

1. a framework erected over an oil well to allow drill tubes to be raised and lowered
2. a simple crane having lifting tackle slung from a boom

1. The ginpole is the simplest form of derrick.
   起重吊杆是一种最简单的起重机。
2. The boom of a derrick.
   人字形起重机的桁

der.rick

n.（名词）
A machine for hoisting and moving heavy objects, consisting of a movable boom equipped with cables and pulleys and connected to the base of an upright stationary beam.
悬臂起重机：提升和移动重物的机器，它由一个带有缆绳和滑轮的可移动的、并与一根由向上静止横梁的底座连接的起重杆组成
A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.
钻架：竖在钻井（尤指油井）之上的支架，用来支撑钻孔设备或提升和下放钻管

来源：
Obsolete derick [hangman, gallows]
废语 derick [刽子手，绞架]
after Derick , 'th-century English hangman
源自 迪瑞克 ，'世纪英国刽子手