The paper introduces the principle of the dust monitor. Especially explains the principle and application of the transmission method and the scatter method.

本文介绍了测尘仪器的基本原理，着重阐述了透射法和散射法的基本原理和实际应用。

My family thinks I bought a brand new high resolution monitor — but all I did was wipe off the dust and fingerprints.

我家人以为我买了一台崭新的高分辨率显示器——但实际上我所做的只是擦去了外面的灰尘和手指印。

A given country might want to monitor dust storms, measure rice yields or track population migrations.

一个领先的国家需要检测沙尘暴，测量大米产量，和跟踪人口流动。

It isn't a speck of dust, it isn't a smudge on the camera lens or on your monitor.

这可不是灰尘瑕疵，也不是照相机镜头或者你的屏幕上的污垢。

Sensors monitor the dust levels.

用传感器检测粉尘量。