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。
Why It's Unique: Despite the mountainous topography of the region, trains traveling through the Gotthard Base Tunnel willremain at nearly the same elevation for the entire trip.
独特之处：尽管该地区属于山地地形，但通过圣哥达基地隧道的火车在整个行程中几乎处于同一海拔高度。
The Federal Emergency Management Agency (FEMA) publishes maps that designate Special Flood Hazard Areas delineated by a Base Flood Elevation (BFE).
美国联邦应急管理署（FEMA）发布了一张用“洪峰基线海拔”（BFE）描绘洪涝频发重灾区轮廓的地图。
The upper level glass volume hovers lightly over a dark iron-spot brick base that mediates between glass and ground and negotiates the grade change along the north elevation.
上层玻璃体被轻轻放置在一片介于玻璃与地面之间的深色铁斑表面的砖基础之上，柔化了北立面的高差。
By configuring this base lower than the original grade, the project sought to minimize the impact of the vehicle as part of the primary elevation.
通过配置此基础比原来低级，该项目旨在减少车辆作为主要海拔部分影响。
As the data base of the GIS digital terrain analysis, digital Elevation Model (DEM) contains rich of terrain, topography and related geo-information and knowledge.
数字地形模型(DEM)包含着丰富的地形、地貌及相关的地学信息与知识，是GIS数字地形分析的数据基础。
A gentle slope gentle slopes base is located in elevation above, not, before and after have buffer space, good position.
缓坡基地位于一缓坡之上，高差不大，前后有一定的缓冲空间，位置良好。
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。
The molded cement base surface, or by the construction elevation cannot use wear-resistant occasions, liquid curing agent is a new choice of ground protection.
对于已成型的水泥基地面，或者因建筑标高不能使用耐磨地坪的场合，液体固化剂是地面防护的新选择。
The difference in north and south elevation also responds to the internal organizations of the base.
南北立面的差异也反映在了基座的内部布局上。
The south elevation weaves the rectilinear and curvilinear geometry of base and bed tower together to scale the building down to relate to the environment of the entry boulevard.
南立面将矩形的基座与曲线形的塔楼体量相互交融，与入口通道的环境形成了呼应。
The results presents the performance characteristic of handover initiation varies with cluster number and base-station antenna elevation angle for the three algorithms.
最后计算机模拟结果比较了不同切换发起规则下切换发起概率与小区区群数和基站天线俯仰角间的关系。
The scene have installed, the pump at the base should have elevation drawings requirements; as for looking for is, are driven and pump relationship between the location.
还有现场安装时，泵底座应该在图纸中有标高要求；至于找正，是驱动机和泵之间的位置关系了。
There is disclosed a tripod head for mounting a device to be held (such as an illumination device) to a support base at an adjustable Angle of depression or elevation.
有披露了用于安装设备三脚架云台举行(如照明设备)为支持基地的抑郁或高度可调角度。
The hinge has a central portion (50) with a convex outer surface, with the lid closed and as viewed in side elevation, that blends with a smooth curvature into outer surfaces of the lid and the base.
所述铰链具有中心部分（50），在盖闭合时并且从侧面正视图观 察时中心部分（50）具有凸的外表面，所述凸的外表面以平滑曲率融入所述盖和所述基体的外表面。
Part of the shop ground should be 1m lower than 0.000 elevation, steel column feet don't descend, RC column to the base instead.
车间一层地面局部下降1米，钢柱下做钢筋混凝土短柱，柱脚不下沉。
Part of the shop ground should be 1m lower than 0.000 elevation, steel column feet don't descend, RC column to the base instead.
车间一层地面局部下降1米，钢柱下做钢筋混凝土短柱，柱脚不下沉。
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