test on safety equipments

例句：

1. 1.Before the launch, we must test allthe safety equipments to ensure they arefunctioning properly.
   在发射前，我们必须对所有安全设备进行检查，以确保它们正常工作。
2. 2. Theengineers conducted a thorough test on thenew safety equipments before releasing them tothe public.
   工程师们在将新安全设备推向公众之前，进行了彻底的测试。
3. 3. The companyinsists on testing every piece of safetyequipments before using them in production.
   该公司坚持在使用生产中的每一件安全设备之前都要进行测试。