Derrick

(noun.) a simple crane having lifting tackle slung from a boom.

(noun.) a framework erected over an oil well to allow drill tubes to be raised and lowered.

整理:凯蒂

• A simple derrick for raising weights. 伯莎M.克拉克. 科学通论.
• The bodies are let down the chutes on belt conveyors, picked up by small derricks and swung over onto the chassis. 佚名. 神奇的知识之书.

克利奥校对