双阀口式中继阀主鞲鞴（膜板）右侧经1mm缩口通（）。A．均衡风缸 B．制动管 C．总风

作者: tihaiku 人气: - 评论: 0

问题双阀口式中继阀主鞲鞴（膜板）右侧经1mm缩口通（）。

选项 A．均衡风缸 B．制动管 C．总风

答案 B

解析无

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