低空

The results show that this wide range precipitation produced under the deep warm ad vection condition and lower jet stream provided the water vapororig in for this precipitation.The meso -scale closing echo displayed in ladar echo explained that meso-scale and micro-scale system enhanced and developed un...

结果表明：此次降水是在深厚的暖平流条件下产生的大范围降水，低空急流为此次降水提供了水汽来源；而雷达回波上表现出中尺度弥合回波，说明在局地动力和热力条件下加强发展的中小尺度系统是造成此次暴雨的主要原因。

He did several sweeping low-level banked passes as well as his trademark aerobatic routine complete with smoke from the wingtip canisters.

他做了几次低空飞行和他标志性的例行特技，顺便从翼尖的罐子里拉了阵烟。

Obtained are a few typical patterns of wind change versus height in the boundary layerthrough analysis of 1987 profile s and meridionally and zonally mean vertical circulation cells fordifferent levels from surface up to 3000 m.

通过分析1987年我国各测站低空（3000m以下）各层次风随高度分布廓线和各经、纬度平均垂直环流，得出边界层内风随高度变化的几种典型分布以及在108E以东我国边界层内存在一对经向反、正垂直环流圈。

Normally aerodrome flight airspace includes such flight airspace as flying techniques (aerobatic, formation, instrument) flight airspace, scientific research test flight airspace, firing flight airspace, low-level flight airspace, super-low-level flight airspace, aeromarine flight airspace, nighttime flight airspace and holding airspace.

机场飞行空域通常包括驾驶术飞行空域、科研试飞飞行空域、射击飞行空域、低空飞行空域、超低空飞行空域、海上飞行空域、夜间飞行空域和等待空域等。

The results showed that, with the increase of reaction temperature, the catalytic deacidifcation and non-catalytic deacidification ability of MgO were basically decreased at lower space velocity and gradually increased at higher space velocity.

结果表明，随着反应温度的升高，MgO的催化脱酸率和非催化脱酸率在较低空速下降低，在较高空速下逐渐增加；MgO的催化脱酸率和非催化脱酸率在335～365 ℃范围内均随空速的增加而降低；在反应过程中降低反应系统的压力有利于MgO的催化脱酸反应。

Because of the existence of natural detecting blind area o f general radar on detecting flying object flying in veryˉ low altitude, it is so essential to put forward a suspended bomb t heory which would make use of sound wave's characˉ teristic parameters as its wavelength and spectrum to get the obje ct's direction and position, and to discuss its orientaˉ tion method and embattle model.

由于现有的常规雷达探测超低空飞行的来袭兵器有其固有的盲区，作为雷达的必要补充，利用声音的大小、频谱等特征能够反映声源的方位等特征参数的特性，提出了一种被动声学探测悬浮弹理论，并对其定位算法和布阵模式进行探讨，目的是防御拦截低空超声速巡航导弹。

It can be applied in the navigation system of the modern weapon which is flighting at low altitude.

该方案非常适用于现代武器低空飞行时的导航。

Part-holonym brook trout , Salvelinus fontinalis2. North American freshwater trout; introduced in Europe brook trout , Salvelinus fontinalis(member-holonym) Salvelinus , genus Salvelinus

在模拟的夜间仪表气象条件下，美空军的斑点鳟鱼飞机以低空地形突防方式进行了20多个小时的飞行实验，这是首次采用合成视景显示技术进行零/零进近直至在迫降地带着陆。。。。

The maximum of the L/D appear at about 30-degree angle of attack. The bugle of the reentry module drops the trim angle. Pyrochemistry reaction largen Ca, Cn, diminish L/D and the trim angle. The variational tendency of aerodynamic characters with angle of attack in high altitude (higher than 105km) is different from that of in low altitude (lower than 105km).

返回舱凸出物使配平攻角减小；高温热、化学非平衡效应使轴向力和法向力系数有所增大，升阻比在数值上有所减小，配平攻角略有降低；返回舱0°～180°攻角范围内的气动力特性高空(105km以上)随攻角的变化趋势与低空(105km以下)的变化趋势不同。

This paper studys the terrain following for low penetration aircraft ,and establishes the model of ALCM's clobber probability based on the Butterworth terrain model . It simulates much of the computation of its clobber probability under typical cruise conditions and analyzes those simulation results deeply. The control system is designed based on the lobber probability simulation result,and the reasonable control data are given.According to those research,the digital terrain following simulations are given .

文中研究飞行器低空突防的地形跟随问题，基于布特沃斯地形模型，建立了飞行器撞地概率仿真模型，在各典型巡航条件下进行了大量的撞地概率仿真计算，并对仿真结果进行了深入地统计分析和研究，在此基础上，设计了相应的控制系统并确定了合理的控制参数，对飞行器地形跟随进行了飞行仿真。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。