这颗卫星利用地面对激光的反射，让研究人员以极高的精度测量地形。
The satellite bounces laser light off the ground, allowing researchers to measure the terrain with extraordinary precision.
这项估算的依据是用地震技术测量记录到的第一批地震波，这种方法在地震超过8.5级时会造成估算不足。
This estimation relied on seismological techniques measuring the first seismic waves recorded, a method that lends itself to underestimation when a quake exceeds a magnitude of 8.5.
但测量行星的质量，天文学家通常还需要使用地球上最大的天文望远镜，来测算径向速度的耗时。
But to get the planet's mass, astronomers normally need to follow up with time-consuming radial velocity observations at some of the planet's biggest telescopes.
利用地球磁场来测量方向是人类历史上最古老的测量方法之一。
In the humanity history, it is one most ancient measuring technique surveying the direction using the Earth magnetic field.
方位，相对位置：方向，尤指用地理学的或天体图线测量的从一个固定位置到另一个位置的带有角度的方向。
Direction, especially angular direction measured from one position to another using geographical or celestial reference lines.
利用天然地震波测量Q值的主要方法有：利用地球自由振荡资料、利用体波、利用面波和利用尾波来研究Q值。
The major methods of measuring Q-value by the natural earthquakes are the ones of using the data of free vibration of earth, body wave, surface wave and coda.
典型地物偏振反射数据库系统是一个建于微机上的系统，该系统利用地物偏振反射测量装置与微机接口自动采集数据。
The system of typical surface feature polarization reflection databases was set up in a computer in order to give service to the study of polarization remote sensing information.
利用地下爆炸产生的冲击放进行2169钢冲击压缩测量。
A shock wave generated by an underground explosion was used to perform the shock compression measurement for the 2169 steel sample.
以惯性测量原理，用地震式低频振动传感器测量桥梁动挠度。
An inertial measurement method for bridge dynamic deflection with seismic low frequency vibration transducers was promoted.
ALD可以进行井下密度测量，包括高质量的井眼成像测井，利用地质导向帮助作业者优化井位，减少地质不确定性。
ALD provides downhole density measurements, including high-quality borehole image logs, to help optimize wellbore placement through geosteering and to reduce geological uncertainties.
利用地形变测量、震源机制和钻孔应力测量等资料，综合研究了三峡及邻区的构造应力场。
We have studied synthetically the tectonic stress field in the Three Gorges and its adjacent area by use of data of crustal deformation, focal mechanism and borehole stress observation.
《科学》杂志刊登了他们的研究结果。科学家们使用地图、现代导航卫星和山上的标记测量了冰层的面积。
The scientists used maps, modern 1)navigational satellites and markers placed on the mountain to measure the ice.
《科学》杂志刊登了他们的研究结果。科学家们使用地图、现代导航卫星和山上的标记测量了冰层的面积。
The scientists used maps, modern 1)navigational satellites and markers placed on the mountain to measure the ice.
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