return ground meaning in English
接地返回
Examples
- Because the machine is equipped with jumping mechanism , it is unnecessary to reset the tool after returning grinding wheel for measurement or dressing
机床设有快跳机构，因此退出砂轮进行测量或修正后不必重新手动对刀。 - In this paper , it emphasized on the influence of the supply temperature of the ground - water , the temperature difference between supply and return ground - water , the flow - rate of the well on the system , the difference area of heat exchangers
为了解决上述问题，我们建立了地下水源热泵系统实验台，采用实验和模拟相结合的方法，对系统的性能特性进行研究分析。 - The experimental results showed that : in the summer operating mode , the refrigerating capacity and coefficient of performance of the system decreased with the increase of the temperature difference between supply and return ground - water and the water supply temperature ; in the winter operating mode , the refrigerating capacity and coefficient of performance of the system increased with the decrease of the temperature difference between supply and return ground - water and the increase of the water supply temperature . it also showed that , change the are of heat exchanger has great influence of refrigeration system
本课题通过实验测试井水进口温度、进出口温差以及在不同温差下换热器面积匹配对系统性能的影响。实验结果表明，夏季工况下，随着井水进口温度的升高，进出口温差的增大，系统制冷量减小，机组cop降低，系统运行性能恶化。冬季工况下，随着井水进口温度的升高，进出口温差的减小，系统的制热量增加，机组cop提高，系统运行性能优化。