着墨辊有自动空转装置，使机器暂停时水墨不致干涸；
The inker automatically Get empty to turn device, prevent ink from being dried .
例如，所有宝马制造的四缸发动机(包括汽油发动机及柴油发动机)都会装有“启动-停止”装置，以减少发动机空转。
For example, all BMW's four-cylinder engines (both petrol and diesel) will come with "start-stop" technology to cut the engine when it is idling.
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