本单元组监督元监督和协调从事钻探石油或天然气，运营服务的钻机，或提供石油和天然气井技术服务的工人的活动。

Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.

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文章介绍了质量技术监督热线服务和商品监控系统的组成，阐述了系统的功能模块设计。

This paper introduces the composition of the system of quality technical supervision hotline service and commodity supervisory, elaborates the system function module design.

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客户通过对供方的监督，保证根据需方技术规范要求提供的NDT服务是II I级人员。

The customer, through his surveillance of the supplier, ensures that the Level III individual is providing the NDT services required by the purchaser's specification.

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