Double feed systems work well if the grid voltage and frequency is very stable.
当网格电压和频率很稳定时，双馈系统工作的很好。
双条喂入。
If you feed something to your pet that they prefer, they receive double the nutrition.
在给宠物喂食时，它们喜欢的食物可获得双倍营养。
If you feed something to your pet that they prefer, they receive double the nutrition.
在给宠物喂食时，它们喜欢的食物可获得双倍营养。
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