So much depends on the character and condition of the individual patient that an abstract determination of our duty based on 'balance' or 'stringency' is useless.

这种情况更依赖于那个病人的品质和状态，因此一个基于平衡和决策的抽象的决策方法就是无用的。

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For hydropower station, monitoring system is the base of it's integrated automation, and is the premise of realizing the condition that nobody is needed on duty (or few on duty).

水电站监控系统是实现水电站综合自动化的基础，也是实现水电站无人值班(少人值守)的前提条件。

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