温度表置放于远离障碍物的百叶箱中，以便取得自由运动空气的标准值。
Thermometers are placed in shelters far away from obstacles so as to get free-moving air standard values.
标准气温测定是在离地面5英尺左右的百叶箱中进行的。
Standard temperature observations are made in thermometer shelters about 5 feet above the ground.
标准气温测定是在离地面5英尺左右的百叶箱中进行的。
Standard temperature observations are made in thermometer shelters about 5 feet above the ground.
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