Temporal uncertainty before, in the past when using ago.
时间的不确定性面前，在过去在使用前。
Because of the spatial-temporal variability and inhomogeneity of natural factors and the uncertainty of human activities, runoff and sediment yielding is a complicated nonlinear process.
由于自然因素的时空变异性和不均一性以及人类活动的不确定性，因此产流产沙是一个复杂的非线性过程。
A new method to measure real-time sensitivity of Doppler lidar is presented, to solve the sensitivity uncertainty problem caused by the spatial and temporal change of aerosol during wind detecting.
提出了一种多普勒激光雷达测风灵敏度实时测量的方法，解决测风时因气溶胶时空变化引入的灵敏度测不准问题。
A new method to measure real-time sensitivity of Doppler lidar is presented, to solve the sensitivity uncertainty problem caused by the spatial and temporal change of aerosol during wind detecting.
提出了一种多普勒激光雷达测风灵敏度实时测量的方法，解决测风时因气溶胶时空变化引入的灵敏度测不准问题。
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