单词：protection unit
protection unit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。
- 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。
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