We're in the process of switching over to a new system of invoicing.

我们正在转用新的发票制度。

《牛津词典》

Also, a large frequency spectrum (698-806 MHz) was freed by switching over from analog TV to the digital one.

此外，从模拟电视信号到数字电视信号的切换也释放了广阔的频道(698 - 806mhz)。

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More pertinently, the i8 can travel around 20 miles on pure electric power before switching over to gasoline.

更体贴的是，i8可以在纯电动模式下续航20英里左右，然后换至汽油动力。

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For its part, Germany is closing down all its plants and switching over to alternative fuels.

FORBES: Three Months Later, Japan Still in Meltdown

But he's also in the process of switching over 68 application servers from NT to Unix.

CNN: Some see ploy in Microsoft NT rename

The ship's engines momentarily went silent, an indication he was switching over from gasoline to gas.

FORBES: The long, loud history of hydrogen as a motor fuel.