spot check meaning in English

现场检查；抽样调查；抽查 (a spot check on prices 对物价的抽查)。

Spot check of n . d . t . performed by supplier
对供应商的无损检测过程进行抽查。
To step up annual inspection and on - road spot checks of in - use vehicles
新增的机动车排气达标率达
Spot check of materials ' quality
对原材料的质量进行抽查。
Are instructions for spot checks by supervisory staff laid down
公司有否制定督导人员须实地突击巡视的指引？
Guide of spot checking and regularly repairing for thermal power plant equipments
火力发电企业设备点检定修管理导则

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