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The popularity of modern information technology makes it urgent to construct a new English teaching model based on the integration of technology and teaching. Such integration targets at improving the traditional teaching mode, representing a trend in the curriculum reform home and abroad. This paper aims at information technology and college English teaching integration, analyzing the importance...
The 2D axisymmetric, real gas model was developed to calculate the ejector in the ejector cooling system. The calculation is to obtain the effect of ejector throat diameter on ejector performance. There is an optimum ejector throat diameter De*(17mm) with the giving calculation operating condition and the other geometry parameters. When De=De*, the entrainment ratio reached the maximum value; when...
Soil samples of 0-15cm from 9 sampling sites including different functional zones and different greening types of Shanghai, China were collected and analyzed. The results showed the average concentration of Cu, Pb, Zn and Cd in soil of shanghai were up to 42.33,169.58,49.06, and 0.2460mg/kg, respectively, which were much higher than their natural background values. Among the functional zones and the...
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