These speed ranges have been assumed for use in calculating airspace and obstacle clearance for each procedure.
这些速度范围用于为每一个程序计算空域和超障余度。
When an obstacle appears in the region B in Fig. 2, clearance values become zero.
如果一个障碍物呈现在图2中的B区时，间隙值变为零。
From the right figure of FIG. 5, a maximum clearance does not change even though there is an avoidable dynamic obstacle.
图5右侧的图可以看出，即使有一个可以回避的动态障碍物，最大的间隙值也不会产生转变。
Map of airport clearance limit and obstacle location serves as a special one to understand and promote the relation between clearance limits and obstacles.
机场净空限制面及障碍物位置图，是了解掌握限制面和障碍物关系的专业地图。
Map of airport clearance limit and obstacle location serves as a special one to understand and promote the relation between clearance limits and obstacles.
机场净空限制面及障碍物位置图，是了解掌握限制面和障碍物关系的专业地图。
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