Here in the Klondike, the drill serves as a kind of gas-powered, handheld time machine, bringing up frozen earth from the Pleistocene, when mammoths and other megafauna once ruled. 在克倫代克這裡，以瓦斯驅動的鑽孔機像是手持的時光機器，帶出更新世的冰凍土壤，那是猛獁象和其他巨型動物主宰地球的年代。
An electrician was assigned to bore holes on each floor slab of a building, with the use of a concrete coring machine, in order to install conduits for wiring work. 混凝土鑽孔機乃樓宇石屎層鑽孔的電工技術，以便工人可在鑽孔裝置管道進行配線工序。
