Atmospheric components

The results showed: when TLC solvent system was: chloroform - methanol - diethyl amine = 90:9:1, alkaloids from lotus leaves were well isolated, and five components were isolated and identified by spraying Dragendorff reagent. The optimal conditions of HPLC solvent system were: methanol- water - diethyl amine = 75:25:0.0125. Under the conditions, components of alkaloids from lotus leaves were separated very well, and ideal RP-HPLC peaks were obtained.5、Methods of High Speed Counter Current Chromatography and preparative High Performance Liquid Chromatography applied to identify and purify alkaloids from lotus leaves were set up. When solvent system of HSCCC was: chloroform - methanol - water (pH=4.00)= 4:3:2, speed of chromatogram was 700rpm, flow speed of the mobile phase was 2mL/min, four pure components relatively were attained by isolation and purification.

结果表明：薄层层析溶剂系统为氯仿：甲醇：二乙胺=90：9：1，使荷叶中的生物碱达到了较好的分离效果，并用改良的碘化铋钾试剂喷雾显色，共分离鉴别出了5种荷叶生物碱；分析型HPLC分析检测的较优溶剂系统为甲醇：水：二乙胺=75：25：0.0125，使荷叶生物碱的各个组分达到了基线分离，并获得了较好的峰形。5、建立了高速逆流色谱和制备型HPLC技术分离纯化荷叶生物碱的具体方法。H(来源：ABC46论文网www.abclunwen.com)SCCC法在溶剂系统为氯仿：甲醇：pH4.00的水=4：3：2，色谱仪转速为700rpm，流动相流速为2mL／min的条件下，分离纯化得到了4个纯度较高的化合物。

The company mainly produces oil glib supporting mechanical components, such as the dust cover, lubricating oil into the tubing connector kits, oil spill pipe connection kits, into the tubing connector kit Valve damping tight cap Valve cap tight, tight Valve cap -- ring components, component pins, screw plug, as well as the bearings and other components for the tractor factory in Shanghai, Shanghai Diesel Engine Co., Ltd., Weichai Power Co., Ltd., Wuxi Diesel Engine Factory, Dongfeng Chaoyang Diesel Engine Co., Ltd., ASIMCO Diesel pumps and other large manufacturing enterprises glib package has won the customers for further cooperation and lay a good foundation.

公司主要生产油泵油嘴配套机械部件，如防尘盖，润滑油进油管接头套，溢油管接头套，进油管接头套，阻尼出油阀紧帽，出油阀紧帽，出油阀紧帽-密封圈组件，定位销部件，螺堵，以及轴承等部件，为上海拖拉机厂，上海柴油机股份有限公司，潍柴动力股份有限公司，无锡柴油机厂，东风朝阳柴油机有限责任有限公司，亚新科等大型柴油机油泵油嘴生产企业配套，赢得了客户的好评，并为进一步的合作打下良好的基础。

Precision stainless steel tweezers,characteristic: antimagnetic, anti-acid, anti-corrosion,it is convenient,safe to operate with magnetic components containing rust,and applicable to operate precision electronic components abd high-density integration of components.

精密不锈钢镊子其特点防磁、防酸、防腐蚀，在操作含磁性含锈元件的工作中，方便、安全，适用于精密电子部件中以及高密度集成的组件中操作。

Precision stainless steel tweezers, Origin: Japan,characteristic: antimagnetic, anti-acid, anti-corrosion,it is convenient,safe to operate with magnetic components containing rust,and applicable to operate precision electronic components abd high-density integration of components.

精密不锈钢镊子，产地：日本，其特点防磁、防酸、防腐蚀，在操作含磁性含锈元件的工作中，方便、安全，适用于精密电子部件中以及高密度集成的组件中操作。

After getting these four line-of-sight vectors, we inverse these data in special observation coordinate based on space analytical geometry, then we can get the vector that has three components on every coordinate, this vector will be treated as the total wind profile in the three-dimensional observation field, the result of this four-point method can basically reflect all the spatial and temporal variation of the atmospheric wind.

在得到视线方向风速矢量后，从选定的三维观测坐标系对这四个矢量进行空间解析几何的运算，可得到观测坐标系的各坐标轴上四个测量矢量的各坐标分量的标量和。从而以这个在三个坐标轴上都有分量的矢量作为在观测视场内的总的风场的风速矢量。

But the mixture of these two components can not be separated by conventional distillation, because they form azeotrope at atmospheric pressure.

但两者在常压下形成共沸物，应用普通精馏方法难以对其进行有效的分离。

In this year's Beijing International Machine Tool Show (2005 CMIT), the Tianjin-or gold at the full range of products, including air preparation components: regulator, filter, lubrication, drainage, pressure gauges; valve categories: Electromagnetic valve, pipe valve, pneumatic valve, mechanical valve, the valve manually, foot valve; cylinder categories: standard atmospheric pressure bars, mini round-cylinder, micro-cylinder, rotating cylinder, manipulator, welding tanks, cylinder block, a rule Cylinder, no-cylinder, guided-bars and all kinds of buffers, the appearance of refined products, a series of rich and comprehensive feature allows visitors not only praise, so that customers have a better choice.

在今年的北京国际机床展（2005CMIT）上，天津罗升展出了金器全系列产品，包括气源处理组件：调压器、过滤器、润滑器、排水器、压力表；阀类：电磁阀、管路阀、气动阀、机械阀、手动阀、脚踏阀；缸类：标准气压杠、迷你圆型缸、微型缸、旋转缸、机械手、焊接缸、阻挡缸、治具缸、无杆缸、导杆杠及各种缓冲器等，产品精致的外观、丰富的系列、全面的功能让参观者赞叹不止，让客户有了更好的选择。

ABSTRACT In China today, Sulfur dioxide is one of the major components of atmospheric pollution.

中国的城市大气污染以二氧化硫污染为主，解决大气中二氧化硫的污染问题已成为社会各界关注的焦点，也是摆在广大科技工作者面前的一项重大课题，将。。。

Urban soil bodies generally exist in the hydrochemistry environment of normal temperature, atmospheric pressure and slow variation. Under this kind of conditions, the chemical components in soil, which are an essential factor affecting the stability of soil, play an important role in this kind of environment, and also have an important influence on surface subsidence, production of earth holes and so on.

城市区域的土体环境一般是处在常态即常温、常压、缓变异的水化学环境中，在这种环境中，影响土体稳定的要素－土体中的化学组份扮演著重要的角色，而其对诸如地面沉降、土洞的产生都有重要影响。

The Global Observing Systems Program is the focus for continuing international work to understand the terrestrial, oceanic and atmospheric components of global change. It provides global and regional data sets and analyses for research, for operational oceanographic and meteorological services; and for monitoring, detection of change, and prediction of future conditions. GOSIC provides a direct route to the GCOS (Global Climate Observing System), GOOS and GTOS (Global Terrestrial Observing System) programs and their data.

海洋与地球科学学院成立于2002年，其前身是创建于1975年的海洋地质与地球物理系。1982年恢复学位制后，首批获得海洋地质硕士学位授予权。1983年成为当时国内高校中唯一的海洋地质学博士点。1992年，原国家教委批准同济大学海洋地质实验室为开放实验室，成为当时全国唯一的部委级海洋地质重点实验室；经1996年国家评估，又成为当时教育部直属高校中唯一的获得科技部运行费的地学开放实验室。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。