临界操作 meaning in English

critical action
critical operation

The asymptotic stability of a man - machine system with critical and non - critical human error
具有临界和非临界操作错误的人机系统的渐近稳定性
In order to predict reliability , a sound valve design must be backed up up by a stress analysis and functional qualification testing under critical operating conditions
为了预测可靠性，一个可靠的阀门设计必须通过临界操作条件下的应力分析和功能合格测试。