Question2: Please provide the arrangement plan of the station and yard with elevation of surrounding roads and control points.

问题2：请提供带有周边规划道路及控制点标高的站场平面布置图。

youdao

The simulation results indicate that the pseudo-range remaining errors will be increased with the distance between base-station and GPS user and in the case of low satellite elevation.

仿真结果表明用户和基准台之间距离增大和低卫星仰角都将使伪距残差增大，气象因素和高程对伪距残差也有影响。

youdao

In the case of quick construction, the elevation of shaft is measured by means of total-station instrument, which possesses advantages of simplicity, speediness, low cost, high precision.

在新型快速建井条件下，在竖井导入高程中采用全站仪是一种简便、快捷、低成本、高精度的方法。

youdao

So, of the 17.34 foot record elevation of the station base sea level caused by Sandy, yes, a maximum of about six inches might be related to human activity.

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