名詞 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.
   起重吊桿是一種最簡單的起重機。
2. The boom of a derrick.
   人字形起重機的桁

der.rick

n.（名詞）
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.
懸臂起重機：提升和移動重物的機器，它由一個帶有纜繩和滑輪的可移動的、并與一根由向上靜止橫梁的底座連接的起重桿組成
A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.
鉆架：豎在鉆井（尤指油井）之上的支架，用來支撐鉆孔設備或提升和下放鉆管

來源：
Obsolete derick [hangman, gallows]
廢語 derick [劊子手，絞架]
after Derick , 'th-century English hangman
源自 迪瑞克 ，'世紀英國劊子手