The visible scope of the water gauge should not surpass the highest and the lowest safe water line.
水位表的可见范围应大于最高、最低安全水位。
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.
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.
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。
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