钻塔

zuàntǎ

钻塔 — zuàntǎ

1. drilling derrick; derrick (the tall tower on a drilling rig used to support the drill string)

   钻塔安装在钻井平台上，用于支撑钻柱。 zuàntǎ ānzhuāng zài zuānjǐng píngtái shàng yòngyú zhīchēng zuān zhù — The derrick is installed on the drilling platform and is used to support the drill string.