When the safety transfer switch is open, the power output end is conducted by the power input end.
安全转换开 关断开,电源输入端导通电源输出端。
The development and transfer of feed, slaughter and processing technologies have increased safety and efficiency, but favour large-scale units rather than small-scale producers.
饲养、屠宰和加工技术的开发和转让提高了安全性和效率,但更有利于大规模的养殖场而不是小规模的养殖者。
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