The Sub-Contractor shall employ a qualified surveying engineer for this purpose, whose suitability (training certificate) is to be produced if requested by the Contractor.
如果承包商有要求，还需要提供其是适合该岗位的原因。
The engineer of the factory is surveying the equipment to is import.
厂里的工程师正在对即将进口的设备进行考察。
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