The materiel of transferred is flowing only in the rubber tube, and keep clear of other parts of peristaltic pump. So avoid the touch pollution.
被输送的液体只是在胶管里流动，与泵的其他零件不相接触，从而避免了接触污染的可能。
The audience can select and learn about "interior decoration pollution and preventive measures" or "enter the household models" through the touch screen.
观众通过触摸屏选择了解“室内装修污染及防范措施”或“进入家居模型”。
On the other hand, due to indoor air pollution, in order to breathe fresh air and touch nature, people would like to spend more time on staying outdoors.
另一方面，室内空气污染使人们愿意花更多的时间呆在户外，以便呼吸新鲜空气、感受自然气息；
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