Hearing protectors - Safety requirements and testing - Part 5: active noise reduction ear-muffs.
听力保护器。安全要求和试验。第5部分：有源降噪耳罩。
To meet the requirements for black box testing of CISS (Computer Interlocking safety critical Software), the safety requirements of CISS are denoted hierarchically and formally.
为满足联锁软件黑箱测试的要求，对联锁软件安全性需求进行了分级形式化表达。
Cinematography. Motion - picture safety films. Requirements and methods of testing.
电影摄影。安全电影胶片。要求和试验方法。
Testing before production has been unable to satisfy the requirements, and minimizing potential safety hazards is necessary to keep product quality in consistency.
生产前的测试已不能满足要求，最大限度减少产品潜在安全危害对于保证产品质量持续稳定变得不可或缺。
First, about 50,000 "old" pesticides had been registered under permissive pre - 1972 safety and testing requirements.
第一，大约5万种“旧的”杀虫剂按照1972年以前容许的可靠性和检查要求进行了注册。
First, about 50,000 "old" pesticides had been registered under permissive pre - 1972 safety and testing requirements.
第一，大约5万种“旧的”杀虫剂按照1972年以前容许的可靠性和检查要求进行了注册。
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