visual line造句

• Visual line of position
  目测位置线
• H means the river front construction , d means the distance between river front constructions and river bank , d " means the distance between river front construction and the river bank on the other side , a means the angle of the visual line from the spot near the river bank and horizon
  本文总结“滨河恒等式” ，针对城市骨干河流水系(河宽大于或等于40米)控制其空间围合度。 h (滨河建筑高度) ， d (滨河建筑离河岸距离) ， d (滨河建筑离河对岸距离) ， (人在河边看河对岸景物仰视角度) 。