level line

• 水准路线,平道,等高线

level line的用法和样例：

例句

1. The indifference curve may be compared with a contour line on a map.
   无差别曲线可以与地图上的等高线相比拟。
2. Assuming a horizontal block of ups and downs on the ground, the water's surface and materials County line is a continuous contour.
   假设用一个水平面街区高低起伏的地面，则水品县与地面的交线就是一条连续不断的等高线。
3. The vertical line meets the horizontal one here.
   垂直线与水平线在此相交。
4. Fill the generator with fresh water above the normal water level.
   给发生器注入正常水平线以上的清水。