Maintenance services: Customer equipment failure, the immediate standby equipment provided free of charge to ensure that the correct business conduct.

维修服务：客户仪器出故障时，即时免费提供备用仪器，确保业务开展无误。

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"When you have low insulin and low IGF-1, the body goes into a state of maintenance, a state of standby," Dr. Longo said.

“当你的胰岛素和IGF - 1都较低时，身体就会处于类似于‘待机’的维护状态，”隆哥博士说。

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Normal positions: running condition, hot standby mode, cold standby mode, maintenance condition, and trolley operation conditions, etc.

如错误操作有：运行状态拉合小车、热备用状态合地刀（挂地线）、检修状态合小车等。

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Highways teams are on standby to switch from routine highways maintenance work to snow clearance duties.

BBC: Gritter