The device is attached to a water bottle, and it monitors the clarity inside the bottle, blinking when the light is obstructed by particles.
这种装置放在水瓶上，用来检测瓶子内部的透明物，一旦光线被杂质阻挡了，它就会闪烁。
2
Taihu water quality in horizontal and vertical variety simultaneity is found, vertical variety of contamination index to be considered in the lake fluid matter monitors and evaluation is put forward.
Feeds, provides water for and monitors the health of animals in zoos, aquaria and wildlife parks, cleans, fixes and maintains animal cages, and informs visitors about animals.