Under super inner hydraulic pressure, the liner still has large safety redundancy from the point view of limit loading capability.

就极限承载能力而言，在超内水压力情况下，双层衬砌结构有较大的安全余度。

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Butterfly spring valves are important safety attachments of boiler pressure vessels, they are used to prevent system pressure from exceeding allowable limit value.

蝶形弹簧安全阀是锅炉压力容器的重要安全附件，用于防止系统压力超过允许的极限值。

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Extruding of water power increases the speed of gas scattering, which makes gas fully release, reduce the gas pressure goes beyond the limit and have remarkable effect to safety production.

由于水力的挤压作用，增加了煤层瓦斯放散的速度，瓦斯得到充分释放。减小了工作面瓦斯超限的威胁，对安全生产有显著的作用。

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Instead, he found it had failed to operate at maximum allowable operating pressure--odd, given that this pressure is usually the upper limit for safety and El Paso was under federal restrictions after an August 2000 pipeline explosion killed 12 campers in New Mexico.

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