Shell is the largest field operator in Nigeria, and accounts for about half of the country's oil operations.

壳牌公司是尼日利亚最大的油田经营者，约占该国石油业的一半。

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Unfortunately, the operation was being conducted under the direction of an agent who, though a capable interrogator, had little experience as a field operator.

不幸的是这次行动的指挥是一个擅长室内审讯而对现场行动知之甚少的人。

youdao

In order to reconstruct the shape of scatterer d, we establish the relation between the scatterer and the far field pattern. The relation can be fixed by so called far field operator f.

为了能够重构散射体d，我们可以建立起远场模与散射体之间的联系，这种联系可以通过所谓的远场算子f来确定。

youdao

Jacob Wooley , 23, of Guntown, Mississippi, was a field radio operator.

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The government also said the field's previous operator, Occidental Petroleum, had not adequately remediated contamination either.

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Todd Palin quit his oil field job as a production operator for BP in 2009.

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