main elevation

基本解释

Relief, roughness and variance coefficient in elevation are main index in macro scale.
在宏觀尺度上，以地形起伏度、地形粗糙度、地形高程變異系數爲主。
Main Outcome Measurement: Elevation of compartment pressure at any of 4 distinct time points during the procedure.
縂躰結果測量：在操作過程中測量4個不同時間點的骨筋膜室壓。
It is suggested that the change of wetted-area and main channel bed elevation of a cross section are the two main factors to judge channel shrinkage, but the ratio of width to depth is not necessary.
主河槽過流麪積、主河槽河牀平均高程是判別河道萎縮的必要因子，而斷麪寬深比不是必要因子。

My platoon was going to be fast roping directly onto a platform a couple hundred yards from the main building and my first task was to control the fast rope and direct the pilots into the right position and elevation.
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