back elevation
英 [bæk ˌelɪˈveɪʃn]
美 [bæk ˌelɪˈveɪʃn]
后视图；背视图；背立面图
双语例句
- Located at the back of the main building, Naxi House is not high enough, but it really representatives another kind of "elevation".
纳西贵宾楼在主楼的背后，房子不高，它代表的是另一种高度。 - Under the constrain upon back sight distance by the resolution of instrument, platforms have to be setup above water surface to bear the instrument so that elevation can be passed over.
受水准仪视距限制（通常不超过100m），需要按一定间距设置水上测量平台用于架设仪器进行高程传递。