Check the connection of the main earthing bar to the earthing rail of the Powerbloc.
检查主接地排和接地排是否可靠连接；
Main slider processes with around road rail and via grinding, lead good, precision is high.
主滑块采用前后导轨，并经过磨削加工，导向性好，精度高。
Rail passes are available through the ticket agent at the main station.
跟车站的售票员可以买到火车票。
Rail passes are available through the ticket agent at the main station.
跟车站的售票员可以买到火车票。
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