The frequencies of the returned beams are compared with them to obtain the true ground speed.
将它们与反回射束作对比而获得真实的地面速度。
PF cotton yield monitoring system is consisted of a yield monitor, cotton flow sensor, head height sensor, ground speed sensor, fan speed sensor. GPS receiver and other components.
PF系列棉花测产系统是由产量监视器、棉花流量传感器、割台高度传感器、地运传感器、风机转速传感器、GPS接收机和其它配件组成。
Our speed over the ground was a miserable 2.2 knots.
我们在地面上的速度只有区区的2.2节。
An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.
飞机得在达到一定的速度以后，才能有足够的提升力从地面起飞。
Using high-speed photography, scientists have determined that there are two steps to the occurrence of lightning from a cloud to the ground.
利用高速摄影技术，科学家们已经确定了闪电从云层到达地面有两个步骤。
They were able to measure the speed and direction of vehicles from ground vibrations.
这些节点可以从地面的振动测量出车辆的速度和方向。
EU missions abroad will get a bigger role in implementing programmes on the ground, while a better staffed organisation will be set up within the Commission to speed up aid delivery.
欧盟驻外机构将根据这一计划在援助项目实施上发挥更大的作用，同时在欧盟内部将建立一个更加精干的组织以加快援助进度。
The battery-powered device uses cutting edge bionic technology to adapt to a person's stride, speed and the type of ground and can help prevent stumbles.
这款通过电池供电的假肢利用了仿生技术，切合了使用者走路的步伐步调以及地面状况，这就避免了截肢患者走路蹒跚的问题。
A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.
音爆是当飞机或其它类型的飞行器以超音速飞过头顶时，地面上的人听到的类似雷声的噪音。
And in Arkansas, an estimated 100,000 fish went belly-up the day before 5,000 blackbirds slammed into roofs, mailboxes and the ground at full speed.
而在阿肯色州，估计有100000条鱼翻了白肚皮，而第二天有5000只画眉全速撞死在屋顶、邮箱和地面上。
The Hayabusa probe blazed a spectacular trail as it came in to hit the ground at a blistering speed, ending a journey to the near-Earth asteroid Itokawa that began in 2003.
这颗“隼鸟号”探测器拖着壮观的火焰尾迹以极快的速度到达地面，结束了一段2003年开始、以近地小行星“系川”为目标的旅程。
These carry atomic clocks that have to run at a different speed to those on the ground because gravity is greater there.
卫星携带的原子钟必须和地面的运行速度不一样，因为那里的重力更强。
Close to the ground, wind speed increases quickly with height.
靠近地面，风速随高度迅速增大。
When the leading leg strikes, there can be a braking motion as speed is inhibited by the contact of the foot with the ground.
当前脚着地的时候，可能存在一个阻碍动作，即，脚触地对速度生成的抑制。
To make matters worse: it's easy to hit top speed on a steep descent-and the faster you move, the harder each foot strikes the ground, and the more pounding the muscles endure.
更糟糕的是：落差大，很容易达到最高速度- - -您的速度越快，双脚撞击地面越厉害，肌肉承受的冲击越大。
When the high speed rail is installed, the height of the column and the ground is consistent, not only affects the aesthetic degree, but also affects the overall level of the barrier plate.
安装高速护栏板时，立柱与地面的高度是否一致，不仅仅影响到美观度，而且也影响了护栏板整体的防撞等级。
Preparations are well underway – South Korea broke ground ona high-speed train line from Seoul to Pyeongchang right before the 2012 London Games.
准备工作正在顺利进行中——在2012年伦敦奥运会开始之前，韩国开始破土动工修建一条从首尔到平昌的高速铁路。
The imaging spectrometer using diffractive optics has compact construction, small volume and rapid scanning speed, and its practical ground manufacture have been visible.
采用二元光学元件的成像光谱仪结构紧凑，体积小，扫描速度快，已研制出地面实用型产品；
The two balls fell at the same speed and hit the ground at the same time.
两个球以相同速度下落并且同时到达地面。
The legs are low to the ground, which reduces the walker's top speed but does provide it with increased stability.
其腿很短，虽然降低了步行机的最大速度，但增强了稳定性。
The primate physique is good for climbing and clambering, but it is not built for high-speed sprinting on the ground, or for lengthy endurance feats.
灵长目的体格适合攀援，其结构不适合地面上的疾速奔跑，也不适合长期的体力活动。
A detection method will let phased coded radar to detect such wideband doppler signal, whose result not only gives speed information, but also filters ground echo by speed as a anti-jamming measure.
相位编码雷达可以采用一种检测方法实现对该宽带多普勒信号的检测，其结果不但可以指示速度，而且还可以作为速度选通的抗干扰措施。
The effects on the ground vibration by the factors such as the length, the load and the speed of the train are analyzed.
振动加速度峰值受轮轴荷载的影响较大，基本上呈线性增加趋势；而列车长度对振动加速度的影响较小。
The effects on the ground vibration by the factors such as the length, the load and the speed of the train are analyzed.
振动加速度峰值受轮轴荷载的影响较大，基本上呈线性增加趋势；而列车长度对振动加速度的影响较小。
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