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当前学科:二甲苯装置操作工(中级)
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工艺流程图上,泵的进口管线标识为06PHC503-18/150B80,则泵的进口过滤器的压力等级是()。
A . A、503Pa
B . B、503kPa
C . C、80磅/平方英吋
D . D、150磅/平方英吋
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