ZD6-J型电动转辙机具有监督尖轨位移、挤岔断表示的功能。
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If a disk module on an XIV Storage System fails, what likely happens?()
A. the system slows significantly but still runs
B. the customer data is lost temporarily but can be recovered
C. the system goes into Read Only mode until redundancy is restored
D. the system redistributes itself and keeps running seamless to the end user&e
在强油风冷却器中,潜油泵和风电动机的控制回路设有短路、过负荷、断相等保护,使用的主要元件有熔丝、接触器及热继电器等
A. 正确
B. 错误
湿性坏疽好发于()
A. 肺
B. 肠
C. 子宫
D. 阑尾