在覆盖电池板的玻璃或塑料片上沉积一种电敏透明材料，传感器监测灰尘等级，当灰尘达到额定等级时，系统发生作用，利用电池板所发电流产生一个电荷。
An electrically-sensitive transparent material is deposited on glass or a plastic sheet that covers the panel. Sensors monitor the dust levels.
利用力敏传感器测量物体的密度，改进了传统的实验方法和仪器，实现了非电量电测，提高了实验的准确度和稳定性。
Using force sensor to measure density of objects can improve the accuracy and stability of the experiment as the result of bettering the traditional experimental methods and instruments.
对纳米氧化钨薄膜的电致变色、气敏特性等性质研究现状作了简要概述，提出了纳米氧化钨薄膜的发展前景。
The study status on electric metachromatism and gas sensibility of nanometric WO_3 thin film is briefly described. The developing trends of nanometric film are also put forward.
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