介绍了压力容器安全泄放装置的分类、作用和选用原则。
The following thesis deals with the classifications, roles and selecting principles of the safety relief device of pressure vessel.
本发明属于压力容器安全装备技术领域，是流体超压的安全泄压装置。
The present invention belongs to the field of pressure container safety equipment technology, and is one overpressure fluid relieving safety device.
轧模机上有隆起的钢制滚筒，用来压制印模或印板锅炉及压力容器安全。
A steel roller bearing a raised design, used for making a die or a printing plate by pressure.
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