Based on game theory, this paper sets up the supervising model of army vehicle maintenance contractor.

基于博弈论建立了军用车辆维修合同商保障监督模型。

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Quality with the Contractor responsible for 20 years operation, he has an interest to design and build quality plant with low operation and maintenance costs.

由于承包商负责20年的运营，他有兴趣以低运营和维护成本来设计和建造可靠的设备。

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Upon completion of the design, the Contractor shall submit detailed installation, operating, and maintenance instructions for the equipment.

在完成设计后，承包者应呈递详细的安装、运行和维护说明。

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ValuJet's maintenance contractor, Sabrejet, was later convicted of not conducting adequate hazardous-materials training.

FORBES: Magazine Article

He worked for a sub-contractor of Tube maintenance company, Tube Lines.

BBC: NEWS | UK | England | London | Probe into terrorist's Tube work

Building contractor Cowley's Building and Maintenance Ltd of Colyton, Devon, and its director Christopher Reed were also prosecuted.

BBC: St Austell brewery fined over pub asbestos