低空

One of the cases they looked at was RAF Flight Lieutenant Hubbard who twice claimed to have seen "a flat disc, light pearl grey in colour, about 50 feet in diameter" flying low over Farnborough at speeds to 800 to 1,000 mph.

其中一个案件是他们期待在英国皇家空军飞行中尉哈伯德谁两次声称已经看到"平盘，轻珍珠灰色的颜色，大约50英尺，直径"低空飞行的波音800的速度为1000英里。

The results show that the flow-field boundary augments with increase of flight altitude at the same flight Mach number and the same mass flow rate, and augments with the increase of mass flow rate at the same flight. At the same time, the combustion gas injection flow-field structures change greatly with the variety of flight status parameters.

结果表明，在发动机排气质量流率相同的情况下，高空时燃气射流流场的边界比低空大；相同飞行高度时，随着发动机排气质量流率的增加，燃气射流流场边界随之增大，同时射流流场的结构也有很大的不同。

The strong westerly jet in the upper troposphere is linked to the Mongolia cyclone and frontogenesis at low level which can cause strong wind and further provides the dynamic factor for the increased DWF in Beijing.

春季对流层高层的东亚西风急流增强能使低空的蒙古气旋加强和锋生，从而引起地面大风，为沙尘天气频次的增加提供动力条件。

As the application of the intermediate models is concerned, the works applying the intermediate models to investigate the topographic boundary layer, frontogenesis and low-level frontal structures, and the boundary layer jet are summarized in this article. It is mainly focused on the dynamic characteristics of the Ekman layer and its effect on the low-level structure and circulation of the weather systems illustrated by the models. It is shown that the intermediate boundary-layer models have great potential in illustrating the low level structures of the weather and climate systems as they are coupled with the free atmospheric models.

对于这些Ekman边界层近似理论模型的进一步应用问题，主要回顾和总结了利用上述模型探讨地形边界层结构、大气锋生过程、低层锋面结构和环流以及边界层日变化、低空急流形成等动力学问题的研究，并对这些研究所揭示的Ekman层动力学特征及其对自由大气低层运动的影响进行了分析，结果表明，这些Ekman边界层近似模型可以较好地揭示大气边界层动力学特征，在大气边界层动力学及其与自由大气相互作用的研究上具有重要价值。

The monthly reanalysis data set and the anal yzed precipitation data set are used to study the interannual variabili ty of Somali Jet and its influences on the interhemispheric water vapor t ransport and on the East Asian summer climate. It is indicated that SMJ plays a key role in the water vapor transport between the two hemispheres.

利用美国国家环境预报中心和美国国家大气科学研究中心再分析月平均气候资料以及Xie和Arkin分析的月平均降水资料（1968～199 8年），针对索马里低空急流的年际变化及其对东亚夏季降水的影响问题展开了分析研究。

Position of low air jet stream: 23°N—28°N,105°E—115°E

低空急流带位置：23°N—28°N，105°E—115°E之间

Pravastatin was able to improve the hyperlipoidemia in the SANFH,It also can reduce the empty lacuna.

普伐他汀能明显改善SANFH兔模型的高脂血症，降低空骨陷窝率，对早期激素性股骨头坏死也有很好的预防作用

The results show that this process is mainly triggered by the upper and lower shear line and the humidity mutation line on the ground is the indication of the squall line formation and development.

结果表明：中低空切变线是此次强对流天气的触发系统，地面湿度突变线对飑线的生成及发展具有指示意义。

A squall line in MCC was monitored by using terminal Doppler radar and AWOS, and the value of low-level wind shear was calculated to provide for Guangzhou Baiyun airport.

利用广州白云机场的多普勒雷达和地面自动站资料对MCC内部的跑线进行实时监测，得到低空风切变对机场的影响情况。

Firstly, a three order linear predictor is designed to compress terrain elevation data.

本文探讨并比较了采用LPC，DCT和BTC三种压缩算法进行低空突防用地形数据压缩的特点。

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。