Company certification as a petroleum process operator or technician may be required.

可能需要石油加工操作员公司认证或技术员认证。

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Experience as a machine or process operator in mineral and metal processing is usually required.

通常需要矿产和金属加工机器或过程操作员的经验。

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Several years of experience as a machine or process operator, usually in the same company or production department, are required.

机器或流程的操作员通常需要具有在同一公司或生产部门的几年的经验。

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The agency said the operator was in the process of installing additional gas extraction measures and cladding to seal the site.

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The exchange operator goes through a rigorous process when studying potential new products, deciding on specifications, testing them, preparing systems, validating the interest from industry and traders, then preparing for the launch.

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Earlier this week, an e-mail dropped into my lap from Saudi Arabia's chief climate negotiator Mohammed Al-Sabban, a veteran of the process with a reputation for being a tough operator.

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