protection unit的用法和樣例：
例句
- When this requirement cannot be fulfilled gauge protection devices can be employed.
當這一要求無(wú)法達到時(shí)應使用表計保護裝置。 - Protection devices of power supply shall be able to prevent the equipment from the damage of sudden power cut.
供電保護裝置具有防止因突發(fā)性斷電而毀壞設備的能力。
