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当前学科：铁路货车运用维修规程
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装卸检修作业场对非电气化区段还须对罐车上部车顶走板、防护栏、人孔盖及螺栓配件、（）等需上车检查的部件进行技术检查。
A . A、罐体
B . B、加温层
C . C、呼吸式安全阀
D . D、卡带
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