反射仪由多波长光源，多通道光路、试纸条夹持器、反射板组成。
同时，还讨论了影响光时域反射仪(OTDR)测试精度的要素和消除测试误差通常采用的对策。
At the same time, it discusses the elements influencing the test accuracy of optical time domain reflectometer (OTDR) and measures for eliminating test error.
反射仪-硝酸根试纸法快捷简便，是蔬菜氮素营养诊断和蔬菜硝酸盐含量监测的理想的现场速测技术。
So the nitrate test-strip-reflectometer method could rapidly monitor the nitrate level of vegetables and soils in the field and market scene.
地形图海拔数据来自于美国国家航空航天局的Terra(土地)卫星上的高级星载热辐射及热反射仪(ASTER)。
The topography is from digital elevation data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite.
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