控制室内至少装两个可靠的远传水位表，每个远传水位表在运行规程规定的最低、最高安全水位刻度处应有明显的标记。

At least two remote water gauges should be installed in the control chamber. A clear mark should be made at the highest and lowest safe water line, which each remote water gauge runs as regulated.

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标记是实现多级安全系统的基础，实施强制访问控制的前提。

Labels are the foundation for implementing multilevel systems and the prerequisite of enforcing mandatory access control in secure systems.

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