"There are situations, particularly for correcting blood-vessel problems like an aneurysm, where we cool the brain in order to stop circulation to an area to perform our work safely," he says.
The 22-ton stainless steel propellers on the icebreaker Louis S. St-Laurentpause in their work pushing the Canadian vessel through frozen waters-allowing a diver to venture near.
Louis s . St - Laurent破冰船上重达22吨的不锈钢推动器停止工作了，它正在帮助加拿大商船安全穿越结冰的水域。之所以停止工作，是因为旁边有正在冒险的潜泳者。
3
Holding other license such as mechanical work, welding, pressure vessel, etc is preferred.