1、
Visibility meter ( mete or meteorological instruments) crown closure measurement in aerial photo
能见度测定仪（气象仪器）授郁闭度航空象片测法
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2、
the design of the transmit and incept devices of the foreword scattering visibility meter
前向散射式能见度仪的发射和接收装置设计
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3、
Aforward scatter infrared visibility meter and its design meth-od are introduced.
介绍了一种红外散射能见度仪的原理和设计方法.
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