从前天开始，一股冷空气袭来。天空依然晴朗，太阳大大的，但这并不能阻止气温下降了8到10度。
A strong cold wind came from the day before yesterday. Though it's still sunny, the temperature has fallen soon for about 8 to 10 degrees.
随着冷凝器进口空气温度的升高，蒸发压力、冷凝压力升高，而过冷度、过热度、制冷量和COP均线性下降；
With the increase of inlet air temperature of the condenser, evaporation pressure, condensation pressure increase, but supercooling and superheat degree, refrigerating capacity and COP decrease.
冷空气前锋过后，秦岭、淮河以北大部地区的气温将下降4至8摄氏度，局部地区可达10至14摄氏度。
Cold front after the Qinling Mountains, temperatures in most areas north of the Huaihe River will drop 4 to 8 degrees Celsius in some areas up to 10 to 14 degrees Celsius.
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