该移动书架系统装有一个地板传感器，当有人站在地板上时，书架就不能被移动。
Floor sensors are installed that keep the shelves from moving while someone is stepping on it.
日本最新款吸尘器装有传感器，能测出灰尘量和地板类型。
The latest Japanese vacuum cleaners contain sensors that detect the amount of dust and type of floor.
带有内置传感器和无线电指挥能力，为了满足用在墙上和地板上使用。
With built-in motion sensor or wirelessly interconnect able, for wall or floor mounting.
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