Field service: an engineer participating in this engineering is particularly appointed to conduct station after-sales service within the warranty period. At least 4 hours to arrive at the fault site.
现场服务：本工程特别委派一名参与本工程的工程师在保修期进行驻地售后服务，最迟4小时到达故障现场进行故障排除。
Field service: an engineer participating in this engineering is particularly appointed to conduct station after-sales service within the warranty period. At least 4 hours to arrive at the fault site.
现场服务：本工程特别委派一名参与本工程的工程师在保修期进行驻地售后服务，最迟4小时到达故障现场进行故障排除。
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