protection unit

• 保护装置

protection unit的用法和样例：

例句

1. 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。
2. Protection devices of power supply shall be able to prevent the equipment from the damage of sudden power cut.
   供电保护装置具有防止因突发性断电而毁坏设备的能力。