Atmospheric precipitation

A high spectral resolution lidar was used for low level atmospheric temperature measurement. Based on the iodine filter's high absorption property for aerosol, the HSRL retrieves low level atmospheric temperature with Rayleigh backscattering signal intensity.

基于碘分子滤波器对大气气溶胶散射的强吸收特性，滤除低层大气中气溶胶散射的影响，从而利用分子瑞利后向散射信号强度反演低层大气温度。

Experts from meteorological department pointed out that the reason why it snowed at that time is that the atmospheric pressure above the area dropped suddenly to 950 millibars. It was 20 millibars lower than the limit of the normal atmospheric pressure. In June, 2000, the temperature in Koppaonike City, a small town in the plain of Yugoslavia, was over 15 degrees centigrade all along. But in midday of June 17 it dropped suddenly to zero or below. Then a heavy snow fell on. This surprised the local residents. People went to street one after another to have a look.

气象部门指出，当时出现雷电的原因是当地上空气压骤降至950毫巴，比正常气压极限低了20毫巴。2000年6月，南斯拉夫平原小城科帕奥尼克的温度一直在15摄氏度以上，但17日中午，小城的温度骤降到摄氏零度以下，接着天空就飘起了大片的雪花，这一情景让当地的居民惊奇不已，纷纷上街观看。

The history of meteorological satellites, the principle of meteorological remote sensing and retrieval methods for atmospheric parameters are introduced comprehensively in this thesis. The principle of Advanced TIROS Operational Vertical Sounder on board the new generation of National Oceanic and Atmospheric Adminisstration polar-orbiting satellites and the retrieval methods for temperature, humidity and wind profiles are given indetails.

本论文系统介绍了气象卫星的发展、遥感原理以及大气参数反演方法；详细介绍了NOAA/ATOVS传感器工作原理及其大气温度、湿度、风矢量廓线反演方法；对MM5中尺度气象数值预报模式、数据同化方法也作了简要介绍。

Therefore we studied the redox carbonylation of nitroarenes with thiols at atmospheric pressure in detail and succeeded in reducing the high reaction pressure to atmospheric pressure .

所以我们在常压条件下对硒催化芳香硝基化合物和硫醇的氧化还原羰基化反应进行了详尽研究，成功地将加压反应常压化。

Pressure governor valve is the use of a spring-loaded power and pressure balance theory, when the spring-loaded pressure less than atmospheric pressure and the valves closed when the pressure is greater than the spring-loaded rubber tubing stretch when the bottom of compressed air diaphragm, diaphragm the effort to promote diaphragm upward and left vavle seat blow the air flow of gas, this would piston shirking role in the pressure mobile, Selection will be emissions from valve seat, air compressors made by the then air into the gas valves and exhaust emissions is through the mouth into atmospheric air compressors idling.

调压阀的原理是利用了弹簧力与压力相平衡的原理，当弹簧的压力小于气压的时候阀关闭，当压力大于弹簧的弹力时候橡胶调压膜片下方的压缩空气对膜片的用途力，推动膜片向上拱曲离开阀座而使空气流入气腔，此时卸荷活塞在气压用途下移动，将排放阀门推离阀座，于是由空气压缩机充入气腔的空气便通过排放阀和排气口排入大气空气压缩机空转。

The paper analyzs and simplifies the mesoscale atmospheric momentum equations with scale analysis method. Results show that the main character of mesoscale atmospheric motion is quasi-stationary.

本文首先应用尺度分析方法，对中尺度大气运动方程组进行分析简化，结果表明中尺度大气运动的主要特征是准定常的，即是在力的准平衡状态下进行的缓慢演变。

Considering the influence of atmospheric resistance on orbit,and the influence of starlight on the observation with star sensor, atmospheric density has to be taken into consideration in high-precision autonomous orbit determination of satellites.

在卫星高精度自主定轨中，由于需要考虑大气阻力对轨道的影响，以及卫星敏感器观测穿过大气层的星光时，都需要知道大气密度。

After atmospheric loading correction according to the admittances, the residuals of seasonal change are less than 1mm. acquired the important conclusion that height seasonal changes mainly come from atmospheric loading. The stations including XNIN, DLHA, CHUN, BJFS have obvious uplift tendency.

由台站实测大气压数据通过大气垂直位移导纳改正，高程年周期信号的残差小于1mm，由此获得台站高程的季节性变化主要来源于大气负荷的影响这一重要结论。

On the special structure of the Lower Latitude Meridian Circle and the practice of determining astronomical refraction in Yunnan observatory,a new method for improving the correction accuracy of the atmo- spheric refraction delay is proposed:the determined data of the astronomical atmospheric refraction values with different azimuths are utilized to find the refractivity and the param- eters of mapping functions for modeling the atmospheric refraction delay correction,which changes with the observing stations and azimuths.

根据云南天文台低纬子午环的特殊结构，和测定大气折射的实践，提出了提高折射延迟改正精度的新方法，即：利用各观测站不同方位从天顶附近直到低地平高度角的天文大气折射实测数据，求解得到折射率差和映射函数的参数，从而建立随测站和随方位而异的大气折射延迟改正模型。

The intensity of laser signal incident straightly on the surface of photoelectric detector of the warning apparatus was calculated under different atmospheric visibilities in this paper. Both the target reflection and the atmospheric dispersion were considered also. The sensitivity of the vehicular laser warning device was discussed to provide a guideline for the development and design of the device.

分析计算了激光在大气传输中在不同能见度下直接入射到告警接收机光电探测器表面上的信号辐射度，以及目标溅射和大气散射情形下的激光信号辐射度，对车载激光告警器灵敏度指标的确定进行了论证，为系统设计和研制提供了依据。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"