关键操作和临界状态是指能够引起对人员所造成重大伤害，造成船舶损坏，货物或其它的财产和环境的损坏的重大危险的操作。
Critical Operations and Conditions are those which have a significant risk of causing major injuries or illness to people, or damage to ship, cargo, other property and/or the environment.
临界点-穿越未完整重建的损坏桥梁。
Threshold - Cross the broken bridge without completely rebuilding it.
观察那一编号的蜡条并不损坏纸的表面，就可确定纸的抗剥性。这个编号称为“临界蜡号”。
By observing the designation number or the wax that does not disturb the surface of he paper, the pick resistance of paper is determined. This number is called the critical wax number.
某超超临界660MW机组发生循环水泵外筒体断裂脱落、陶瓷轴承损坏的事故，造成重大损失。
The serious damage accidents induced by the out shell and ceramic bearing fracture of circulating pump in 660 MW thermal power plant have lead to great losses.
即便在下游杂质增加到破坏临界点之前，由于压力的改变或其他外部环境的原因，还是会导致系统被损坏。
Even before the burst point where the particulates downstream increase, due to change in pressure or other external conditions, can still destroy the system.
即便在下游杂质增加到破坏临界点之前，由于压力的改变或其他外部环境的原因，还是会导致系统被损坏。
Even before the burst point where the particulates downstream increase, due to change in pressure or other external conditions, can still destroy the system.
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