地面环境

与地面环境协调的地下工程开挖预警方法研究

An Early-Warning Study on Underground Engineering Excavation Coordinated with Ground Environment

地下残留大量聚合物从油井产出造成地面环境污染等问题。

Residual polymer will also pollute the ground environment when outputted from the oil well .

但是事实上，h和Q在全球的分布都是变化着的，这与地面环境状况有关。

In fact , both h and Q are affected by the land surface conditions and vary globally .

结果表明：在地面环境下，PEMFC可以通过合适的放置方式来对合适方向的重力加以利用，提高性能。

It is indicated that , on the earth , the gravity can be suitably utilized to improve the PEMFC performance .

面向复杂地面环境的作业型履带式移动机器人研究

Study on Tracked Mobile Robot with Manipulator in Complex Terrain

分布式虚拟环境中的综合地面环境研究

Study on Synthetic Ground Environment in Distributed Virtual Environment

太空和地面环境发育鸡胚的耳蜗神经节神经元形态比较

The comparative study of morphology of cochlea ganglions of chicken embryos hatched in the space

地面环境随机激振下大型建筑物系统识别和参数识别

Identification of the system and parameters of structures under the random excitation of ground environments

和人们习以为常的地面环境相比，地下空间环境是明显不同的。

Compared with ground environment , which is accustomed to people , underground space environment is obviously different .

大气颗粒物沉降后，与土壤和水源接触可造成地面环境的污染。

Atmospheric particles matters contact with soils and water resources after their settlement bring pollution to ground environment .

对地面环境的理解是地面智能机器人自主导航控制系统的核心技术。

Ground scene interpretation is the core technology of the autonomous navigation control system of the intelligent robot .

以往的膛口流场研究主要针对地面环境，对高空环境中膛口流场的特点及其控制机理尚认识不足。

So we have insufficient understandings on the characteristics of muzzle flow field and control mechanism in high altitude environment .

目前对其地面环境的研究已经很成熟，但是国内对于空间环境下的蜗杆传动的研究还是空白。

The study under the terrestrial environment is very mature now , but the national study under the space environment is blank .

实验表明此方法获取的导航参数受光照和地面环境的影响不大，且偏离导航线误差较低，具有较好的实时性和鲁棒性。

According to the experiment this method is less impacted by light and floor circumstance , less error of aberrancy , better real-time and robustness .

仿真分析表明，该方法实现了包含足部转动的动态步行，地面环境不变条件下多周期运动起始点满足周期稳定性条件。

Simulation analysis showed that this approach realized dynamic walking motion including foot rotation and initial points of multi-step walking satisfied periodic stability requirement under identical ground condition .

对移动终端的速度、数据传输速率、地面环境及载波频率对信道传输效率的影响作了探讨。

In addition , the paper gives the effects of mobile terminal speed 、 data transmission rate 、 ground evironment and carrier frequency on the channel transmission efficiency .

空气循环制冷式飞机地面环境控制系统是沈阳航达机载设备公司立项的重点课题，是为满足新型航空装备的保障需求而研制的。

The airplane ground environmental control system is the important task of ShenYang Hang Da airplane loading equipment company . It is investigated for the demand of new aeronautic equip.

随着国民经济建设与国防建设的不断发展，人们逐渐认识到地下空间的利用对改善地面环境起着重要作用。

With the development of national economic and defense construction , people gradually recognize that the uses of underground space play an important role on the improvement of ground environment .

在该系统设计过程中，研究了地面环境和空间环境对控制系统的不同影响，并以此为指导设计了控制系统的硬件和软件。

During the design of the system , different effects of both the ground environment and outer space environment on the system are analyzed for designing the hardware and software .

针对具有纹理特征的地面环境中边缘过多的问题，本文又提出了基于图像纹理特征的疑似障碍物区域边缘匹配的方法，成功地解决了该特殊地面环境给匹配带来的困难。

Aiming at the problem that there are too many edges in texture featured ground , the edge matching method of suspected obstacle areas based on the texture feature is proposed .

许多电荷的太阳风粒子在有足够的能量，如果它们直接接触地面环境，就能构成对人类的危害。

Many of the charge particles in the solar wind have enough energy so that they would represent a hazard to human beings if they made direct contact with the surface environment .

对弹出式着陆梯在地面环境进行释放试验，观察着陆梯释放的情况，测量着陆梯弹出过程中选定方向的加速度。本文对着陆梯结构进行设计并进行了理论分析、仿真分析和实验分析。

By the test system of the landing ladder on the earth which releases by an elastical structure , measure the acceleration of the ladder in the chosen directions in the process of releasing .

在采动损害过程中产生的覆岩中隔水层破断，又反过来改变地下水系统，引起井下突水事故和地面环境恶化。

During environmental hazards induced by coal mining result in the fracture of water-lock rock layers and the change of the motion system of underground water so that cause mine flood and deterioration of ground environment .

太阳模拟器是用来模拟太阳光辐照特性的仪器，其中模拟地面环境的中小型太阳模拟器在现代光伏产业中拥有重要的地位。

The solar simulator is an instrument for simulating the character of sunlight irradiation . The small and medium sized solar simulator used for the simulation of ground environment has an important role in the photovoltaic industry .

最后分别在地面环境和真空环境下对比旧谐振腔进行了点火启动和效率分析实验，以此来验证新谐振腔的性能。

Lastly , in contrast to the old resonator , the ignition reliability and efficiency of the new one are experimented in atmosphere and vacuum environment respectively , which are aimed to validate the new one 's performance .

而且，如果射孔层段存在异常高压层，射后易发生井喷，不仅给电缆射孔施工带来安全隐患，也给地面环境造成极大污染；

Furthermore , if there exists abnormal pressure layer in the perforation segment , blowout is likely to happen , which may cause safety problem to the cable perforating performance , and also pollute the ground environment badly .

同时由于地面环境不能完全替代航摄作业环境，因而目前利用地面检校方法得到的视准轴误差和空间位置偏心差值稳定性和精度均低于飞行检校得到的精度。

Also , the stability and accuracy of the Boresight Misalignment and Levers Arms which are got by using ground calibration method are lower than flight calibration , the reason probably is that the ground environment could not replace flight environment absolutely .

与采用传统的现场支护散模结构方法相比，采用移动模架施工具有生产率高、不受地面环境影响、不用起重设备配合、质量可靠等优点。

In comparison to the approach by using traditional site erected discrete mould structure , the adoption of movable mould frames has the advantages of high productivity , unaffected by ground environment , not requiring the cooperation of hoisting equipment and reliable quality .

要获得蜗杆传动的空间环境适应性必须对空间环境下区别于地面环境的特殊因素分别进行分析，即空间高低温、真空、强振动、辐射、加速度等因素。

We should analyse the factor which different from ground environment in the space environment such as high-low temperature , vacuum , vibration , strong radiation , acceleration , etc. if we want gain the adaptability of worm gearing in the space environment .

目前轮式和履带机器人在技术上已经非常成熟并得到广泛应用，但它们只能在相对平坦的地面环境移动，而超过一半的陆地表面为崎岖不平的山地、丛林和冰雪地面。

By far wheeled robots and tracked robots are technically mature and extensively adopted , however , they are constrained to move on even terrains . Over half of the land surfaces are rugged mountains , jungles , and lands covered by snow and ice .