It includes the inquiry of power supply filter, a current leakage protection and transitional course when they are applied together.

其中包括对电源滤波器、漏电保护以及它们一起使用时过渡过程的探讨。

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Buy a filter for your tap water so you don't need to buy bottled water from a conglomerate eager to control our water supply.

买一个水龙头过滤器，这样你就不用买那些想要控制我们饮用水供应的大企业生产的瓶装水。

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The amount involved is minuscule, as is the quantity of electricity needed to keep the filter charged (a small solar panel would be sufficient to supply it).

它所耗费的成本是微不足道的，只是这种过滤器需要一定的电能(一个小型太阳能板足够给它供能)。

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It estimates that the majority of homes will be able to solve any interference issues by fitting a filter, which it will supply free of charge.

BBC: Man watching TV

The filter fabric, made by a Swiss medical supply manufacturer, is feather light and ripstop strong.

WSJ: Polyester Is Back in Style at Alexander Wang, Talbot Runhof, Akris