查询词典 ground speed

After the airdrop experiments of the system of the projectile and speed-down parachute, the balance velocity obtained from the optics apparatus on the ground、the balance spinning speed obtained from the gyroscope on the projectile and the image obtained from the infrared detector on the projectile are all used to simulate the six-dimension exterior trajectory of the projectile and identify the roll damping moment derivatives, and the identification can safely come to a conclusion that the absolute value of roll damping moment derivatives from the engineering calculation are on the low side.

对卷弧尾翼弹与减速伞系统进行空投试验，由地面光测系统给出平衡落速、弹上陀螺给出平衡转速、弹上红外探测器拍摄地面图像判断弹的姿态。通过六自由度弹道模拟，对弹滚转阻尼导数进行参数辨识，得到工程估算所得滚转阻尼导数绝对值偏小的结论。 5。对空投试验中出现弹姿态摆动现象，从受力分析及红外图像分析两个方面进行探讨，给出合理解释，并根据分析对弹外形进行修改，在后来的试验中收到很好的效果。

This speed is great for going up a hill that is steep, but it is not a good speed for flat ground or racing downhill.

这是伟大的高速增长是山坡陡峭，但它并不是一个很好的速度为平地或赛车下坡。

This paper takes one low-speed-circumgyrate rocket with a empennage asa research object, set up a relevant reference frame, analyse the strength andmoment on the amended rocket, ratiocinate the sports equation with 6 DOF; analyse the factors which cause terminal windage between pratical trajectoryand fiducial trajectory, take certain rocket for example, make use of theemluator on the influence of estimating precision caused by measuredinformation, find the speed, the trajectory obliquity, the trajectory setoverand the coordinate are the sensitive factor arosing terminal windage of thetrajectory; introduce the developing status of detecting technique, and basedon the actuality, choose the radar in the ground as measure equipment; simplydesign and analyse the setting and inflame control of the impulse engine onthe amended rocket; design the amend method and validate its feasibility takingthe use of emluator.

本文以某型低速旋转尾翼火箭弹为研究对象，建立了相应的坐标系，详细的分析了作用在弹道修正弹上的力和力矩，由动量定理和动量矩定理推导出了在一般形式下的弹道修正弹的空间六自由度的运动方程；对引起弹道落点偏差的因素进行了分析，以某口径火箭弹为例仿真了可测信息量对估算精度的影响，发现速度大小、弹道倾角、弹道偏角和位置坐标是引起落点偏差的主要因素；对弹道探测技术发展现状作综合性阐述，并基于现状，选用地面火控雷达作为测量装置；对弹道修正弹上脉冲推力器的安装和点火控制方法进行了简要的设计与分析；设计了弹道修正弹指令修正的修正方法，通过数字仿真验证了方法的可行性。

Thunderstorm downburst wind tunnel has the particularity and the intercommunity with a low-speed uniflow wind tunnel. A wind tunnel for thunderstorm downburst was well designed by taking into account the low-speed uniflow wind tunnel design criteria, andan adjustable plate was made to simulate the ground.

鉴于雷暴冲击风试验装置的特殊性以及与低速直流风洞的共通性，参考低速直流风洞的设计方法设计完成了试验装置的洞体结构，并制作了具有调节功能的平板来模拟地面。

USB instrument is brought to the ground and inserted into USB interface of the computer while chauffeurs ascend to the ground. The special computer software will show up one shifts speed data in a table, which also has the ability of printing and inquiring.

升井后，司机将USB设备带至地面管理计算机，插入USB接口，计算机专用软件将以表格形式显示当班的机车的速度数据，该软件还带有打印、查询等其他管理功能。

To induce the factors flow and reintegration to speed up development of the border areas, namely, on the ground of the theory of factors flowing and its territory configuration, the author made case study of the border areas between Guangxi of China and Vietnam, explains the road through complementary factors reintegrated to speed up development of the border areas.

第四章，是全文研究的重点，笔者以前文的综合研究为基础，着重论述西南边境跨国区域合作开发的对策措施。

This paper makes an investigation on the boundary layer displacement surfaces on a fixed ground board and the corresponding aerodynamic characteristics of aerofoils in two-dimensional ground effecfs at low speed by means of both numerical calculation and experimental method.

本文用数值计算和实验测量研究了低速二元地面效应试验中固定地板附面层位移面的形状及模型的气动特性。

Eric who has many years' driving experience has had many car accidents. The most serious accident changed his attitude towards driving tremendously."In that day I was driving past Sai Kung and was speeding on the big slope in Pik Uk. I was driving at a very high speed. As a result since the ground was slippery, the tires aquaplaned. The car made three turns of 360 degrees before It could come to a stop. The whole car was ruined and almost fell off the mountain. Luckily I was not hurt." Thereafter Eric did not pursue high speed.

已有多年驾驶经验的Eric，也试过不少交通意外，最严重的一次，令他的驾驶态度产生大改变，「当日驾车经过西贡，在壁屋的大斜路上飞驰，当时的车速颇高，结果因地面湿滑而跣胎，打了三个三百六十度的圈才停下，全车尽毁，差点掉下山，庆幸自己冇事。

A comparison of it with the case in wheel/rail typed high speed trains was discussed in detail.The main conclusion obtained is that around 300 km/h wheel/rail trains should be the backbone of the ground high speed rail transit system.

得到的主要结论是：地面高速轨道交通应以 30 0 km/h左右的轮轨高速铁路为主体；在需要 40 0～ 60 0 km/h超高速的特定条件下，也可以采用磁浮高速列车，作为一种补充。

The coordinate center of satellite altimetry data was the center of Earth so that the difference between value speed of satellite and the value speed of tide gauge station was correlative with the ground fall at tide gauge.

由于卫星测高数据是严格建立在地心坐标基础上的，因此二者的差异在很大程度上应与验潮站所在地点的地面沉降有关。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。