go-devil

IPA(Pronunciation)

Noun

US colloquial

A weight which is dropped into a bore, as of an oil well, to explode a cartridge previously lowered.

Japanese Meaning

油井の穿孔孔（石油井などの穴）に落とし込まれ、事前に下ろされたカートリッジを爆発させるための重り

They dropped a go-devil into the wellbore to detonate the cartridge that had been placed below.

作業員たちは、下に下ろしておいた薬筒を爆発させるために、油井の井筒に落し錘を投下した。

Sense（1）

A weight which is dropped into a bore, as of an oil well, to explode a cartridge previously lowered.

Sense（2）

Sense（3）

A rough sled or dray used for dragging logs, hauling stone, etc.

go-devils

（ plural ）