periodic test meaning in English

定期试验
周期试验
周期性检查
周期性试验

Periodic test for fixed electrical installations
定期测试大厦公用电力装置
Rules for quality periodic testing of fire vehicle product
消防车产品质量定期检查试验规程
Medical electron accelerators acceptance and periodic tests
医用电子加速器验收试验和周期检验规程
Periodic tests and monitoring of the safety system of nuclear power plant
核电厂安全系统定期试验与监测
Tv announcement - periodic test for fixed electrical installations
电视宣传短片-定期测试大厦公用电力装置

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