bull wheel

Noun

A type of large windlass used in drilling.

Japanese Meaning

掘削作業で使用される大型のウィンラス装置

Before the drill began turning, the crew checked the bull wheel for any signs of wear.

掘削を始める前に、クルーは摩耗の兆候がないか掘削用の大型ウィンドラスを点検した。

Sense（1）

A type of large windlass used in drilling.

Outside a big wooden bull wheel was tilted against the wall.

bull wheels

（ plural ）