coring machine 岩心钻机
- A worker's arm was injured whilst operating a concrete coring machine.
工人在操作混凝土钻孔机时引致手臂受伤。 - 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.
混凝土钻孔机乃楼宇石屎层钻孔的电工技术,以便工人可在钻孔装置管道进行配线工序。
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