管越 meaning in Chinese

yue guan

To make the thermal efficiency best , y , a , av / as should be : r : [ 60 - 75 ] a : [ 1 - 1 . 5 ] av / as : [ 0 . 8 - 1 ] in this paper , numerical model of solar radiant floor heating system is also built . the model of numerical model is solved by finite differance method . the smaller the distance to the tube is , the higher the temperature on the surface of the floor is
地板表面相邻两管间水平方向的温度分布：距离加热管越近，温度越高；两管中间处温度最低；供回水温差越小，地板表面温度分布越平缓；在供回水温度和排管间距均一定的情况下，地板覆盖层厚度越大，其温度分布越为平缓，对应的地板表面温度分布越均匀。