... PPSprogressive power steering渐进式动力转向 PPVpressure protection valve过压保护阀 PROMprogrammable read only memory可编程只读存储器 ...
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应该为任何管道提供过压保护，包括液体产品可能被隔离阀堵在里面的蒸发器回路、止回阀或其它系统组件。
Overpressure protection should be provided on any lines, including the vaporizer circuit, in which liquid product can be trapped by isolation valves, check valves, or other system components.
简体中文标题：低温容器。过压保护用安全装置。第1部分：低温设施用安全阀。
English Name:Cryogenic vessels - Safety devices for protection against excessive pressure - Part 1: Safety valves for cryogenic service;
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