自动空气开关
参考答案:
简称空气开关,是低压开关中性能最完善的开关。能切断故障电流,常用在低压大功率电路中作主要控制电器。
在实施员工福利计划时,如何做到节约开支、降低成本
Within the context of the UN Convention on Contracts for the International Sale of Goods, explain the obligations imposed on the buyer of goods. (10 marks)