To study the taxiing-induced dynamic response of the aircraft with multiple wheels and multiple landing gears due to runway unevenness, base on several reasonable and necessary assumptions, the mathematical model of aircraft in taxiing is established using the d'alembert's principle. It can simulate taxiing inpact properties accurately, it considers in detail the vertical and horizontal motion and pitching about its center of gravity and the significant symmetric elastic modes.

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And 4 p.m., the few minority of larvae transferred before 8 a.m. and after 8 p.m.. The larvae crawled out from the frass site , transferred down along the trunk to earth ground, then digged into the layer of soil, finally cached in a fitting site of cortex. With the use of downtree transferring characteristics, prevention tests were conducted.

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Meanwhile the nonhydrostatic and high-resolution character and physical processes contained in the cloud model can be made use of. In this way some of the difficulties met in the fully description can be overcome. So we can investigate the effect of surface friction on the frontogenesis in the boundary layer in high-resolution nonhydrostatic model. The structure of the front obtained through this approach is consistent with the observation.

在高分辨率情況下研究了地面摩擦對(duì)邊界層內(nèi)鋒生的作用，從而得出比較精細(xì)的学生妹网站、與實(shí)際觀測(cè)相一致的類似重力流的邊界層內(nèi)鋒面結(jié)構(gòu)特征欧美黑白激情性爱，說(shuō)明了地面摩擦對(duì)鋒生和鋒面結(jié)構(gòu)的重要影響，這是以往數(shù)值模擬還沒(méi)有得到的結(jié)果亚洲欧美性爱视频日韩字幕。

The track estimating theory is applied to the analytical processes of hopping in the several typical environments: hop over planar surface, overleap obstacles and ditches, jump up steps or jump down.

把軌跡預(yù)測(cè)理論應(yīng)用于水平地面跳躍www.99riav113.com、躍過(guò)溝渠在线看成年人视频、跨越障礙物、躍上或躍下臺(tái)階等幾種典型地形下跳躍過(guò)程的分析中抠逼黄片15.0。

Treatment is conducted with a single posterior spinal field abutting two lateral cranial fields. The opposed lateral fields are half-blocked and the inferior line is perpendicular. The posterior field uses some fixed field parameters so that the cephalad edge of the posterior field is coplanar with the caudal edges of the lateral fields and it is independent of the height of the couch.

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When the poisonous pesticide is degraded, it is likely pollute soil and water. If the underground water level is within 6 meters to the ground, the eluviated pesticide may pollute the underground water. Thus we have to be cautious when using pesticide

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Based on this context, this paper applies CCM to assess the accessibility of public bus network by introducing multiple bus lines in the certain road sections and considering the spatial distribution of population being assigned to each bus stop. The bulk bus line demand, as the substitution of original BLD, is therefore used to reflect the people,s convenience in taking public buses.

基于道路容量需求與可達(dá)性所表征的交通便捷程度意義相反的關(guān)系，以地面公交線網(wǎng)為對(duì)象一级毛片高清免费视频，在已知城市人口分布的條件下草久草网，考慮公交線路重復(fù)數(shù)的影響，對(duì)CCM加以改進(jìn)欧美色图亚洲色图在线，提出通過(guò)計(jì)算公共交通線路容量需求來(lái)評(píng)價(jià)地面公交線網(wǎng)可達(dá)性的方法www,五月天,com。

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The computation model had 5 parameters, which could be identified by displacement inverse algorithm. At the same time, the ground deformation limits of highways to determine the engineering treatment scope of goafs were provided. On such a basis, the problem could be solved. Finally, a case of Lei-Yi highway was given. The computed results showed that the present method could successfully solve the ground deformation problems of goafs.

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