difference in elevation 高差 ; 高程差
base of difference in elevation 高差基数
Determination for difference in elevation 测定两点间高差
measurement of difference in elevation 高差测量
range in elevation 海拔幅度
To measure the difference in elevation between poles, surveyors used an optical level—a telescope on a level base—placed halfway between the poles.
为了测量两极之间的高程差,测量员在两极中间的一个水平基座上使用了光学水准望远镜。
They sighted each pole, reading off measurements that were then used to calculate the change in elevation over each increment.
他们瞄准了每个极点,读出测量值,然后用这些测量值来计算每个增量上的海拔变化。
"As you go up in elevation, sky shine becomes more of a problem," says Schmieman.
“当你所处的高度越高,天空回散照射问题就越严重,”斯切米尔曼说。
modernity, in Crane's strange, gorgeous poetry, is all about getting high, about elevation, exultation.
在克莱恩古怪又绝美的诗篇里,现代性就是关于不断的上升,和狂喜之情。
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