protective device的用法和样例:
例句
- When this requirement cannot be fulfilled gauge protection devices can be employed.
当这一要求无法达到时应使用表计保护装置。 - Can be a passive cam or a spring-loaded device with two or more camming pieces on a stem.
可以是被动凸轮保护器,也可以是有两个或更多凸轮装置的弹簧保护装置。 - Provision of adequate personal protective equipment is a particularly urgent need.
提供充足的个人防护设备是一项特别紧急的需要。