Adjustment problem is to obtain correlative observations from direct observations.

平差即由直接观测值求定相关观测值。

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The Use of Direct Observations over the Aerosol Particle Size Distribution for Inverting Lidar Data.

用气溶胶粒子尺度分布的直接观测反转光达数据。

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Direct observations of wind speeds are inherently problematic. Anemometers are far less accurate and consistent than thermometers, Pryor says.

普莱尔说，直接观测风速本身就是有问题的，风速计并不精确，它的准确度甚至不如体温计。

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In summary, science progresses by testing predictions against real world data obtained from direct observations and rigorous experiments.

WSJ: Concerned Scientists Reply on Global Warming

The data and the relationships we are talking about are based on studies in the field, and other direct observations.

FORBES: Antarctic Temperatures Are Rising Twice As Fast As Previously Predicted

Using a combination of radio-tags and direct observations, the researchers analysed 94 wolves as they hunted elk in Yellowstone National Park, Wyoming.

ECONOMIST: Controlling the size of predators