切断阀采用气动球阀，泄漏等级为V或VI级，限位开关、电磁阀、空气过滤减压阀等应随阀成套供货。
On-off valve shall be pneumatic ball valve, and the leakage class is V or VI. All the valve accessories such as limit switches, solenoid valves and filter regulators shall be supplied with the valves.
根据国内垫片标准规定的泄漏率指标和美国PVRC对连接系统划分的紧密度等级，尝试定义了法兰连接系统的安全性等级。
An attempt was made to define the safety grade of flanged connections according to target leakage rates described in domestic gasket standards and tightness rates of joints stated in PVRC of ASME.
通过对煤气加压站煤气泄漏源点的分析和确认，并对其泄漏源点采取充氮密封和局部强制通风等手段，以达到降低煤气区域爆炸等级的目的，并对煤气加压站防爆等级进行了探讨性划分。
The means of sealing by nitrogen aerating and local forced ventilation are used for the leakage source points so as to reduce the explosion class in the gas zones.
INES国际核安全和辐射事件等级划分适用于所有的核泄漏事件，而它们中的大部分时间都是和设备故障和操作失误有关。此等级划分不仅覆盖了真是发生的事件后果，也覆盖了潜在的事件后果。
INES is meant to be applicable to all events, the vast majority of which relate to failures in equipment or procedures, and cover not only actual consequences but potential ones.
INES国际核安全和辐射事件等级划分适用于所有的核泄漏事件，而它们中的大部分时间都是和设备故障和操作失误有关。此等级划分不仅覆盖了真是发生的事件后果，也覆盖了潜在的事件后果。
INES is meant to be applicable to all events, the vast majority of which relate to failures in equipment or procedures, and cover not only actual consequences but potential ones.
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