However, the application of SAR imagery to the measurement of geophysical and biophysical parameters is constrained by geometric and radiometric effects caused by variable terrain.
然而，由于地形变化对SAR影像几何和辐射特征的影响，SAR影像在地球生物物理参数测量上的应用受到了限制。
Methods: 5 parameters including NST, FBM, FM, FT, AFV were applied to biophysical score to monitor fetal situation.
方法：用胎心监护仪作NST试验，用B超观察FBM、FM、FT、AFV ，该5个指标联合用于监测胎儿宫内状态。
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