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单选题 Solenoid valves shall be shown with a notation indicating whether the valve is spring-loaded to the open or closed position

A. Solenoid valves shall be shown with a notation. The notation indicates the spring is loaded by the valve to the open or closed position

B. Solenoid valves shall be shown with a symbol. The valve indicates whether the valve is spring-loaded to the open or closed position

C. Solenoid valves shall be shown with a mark. The mark indicates whether the valve is spring-loaded to the open or closed position

M9习题资源库-2024年校级课题课程封面

学科:M9习题资源库-2024年校级课题

时间:2025-06-25 06:16:17

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