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。
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