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On basis of the color reactions of 4-(2-pyridine azo)-resorcin with copper, zinc and manganese, but the absorption spectrum of complex compounds which they created overlapped with each other seriously. Dealing with the spectrum data with the method of multivariate calibrations of chemometrics, we can simultaneously analyze the measured spectrum of mixture.

基于这三种金属离子均能和4-（2-吡啶偶氮）－间苯二酚发生显色反应，但所生成络合物的吸收光谱重叠比较严重，采用化学计量学的多元校正方法，解析了Cu(上标 2+)、Zn(上标 2+)、Mn(上标 2+)混合物的测量光谱。

A class of fast-scale bifurcations appearing around the maximum value of the input voltage is discovered for the first time by experiment. Then the influence of the fast-scale bifurcations on the performance of the PFC converters is discussed. Whether the fast-scale bifurcations will appear and how wide the bifurcation region depend on the characteristics of the current loop output. Therefore, the main factors that affect the current loop output are analyzed, including the current loop parameters, inductance, and root-mean-square value of the input voltage.

通过实验，该文首次发现了一类在输入电压最大值附近发生的快时标分岔；详细讨论了快时标分岔对PFC变换器性能的影响；由于电流环输出的特点决定了变换器是否会出现快时标分岔以及分岔区域的大小，该文分析了影响电流环输出的主要因素，包括电流环参数、电感值和输入电压有效值。

By continuous efforts of many scientists, various kinds of practical atomic frequency standards have been developed, including active and passive rubidium and hydrogen atomic frequency standards.

经过几代科学家的努力，已经研制出包括主动、被动型铷原子频标和氢原子频标在内的多种实用型频标。

The article analyzes change of its ingredients including Ca(superscript 2+), Fe(superscript 2+) 42(superscript 2+) within different process using chemical analysis, iodine amount and testing chemical value ,and prove the conclusion that the method abouve is one of the best ways to process ruddle through experimental data, which may cause ruddle crispy and easy to be smashed, and get the effctive ingredients, and arsenic's amount can be limited as the value require by codex (0.01%).

利用化学分析法、碘量法以及化合价数的测定法来分析代赭石不同炮制品中的Ca(上标 2+)、Fe(上标 2+)、As(上标 3+)的含量变化，通过实验数据来证实煅醋淬法是炮制代赭石最行之有效的一种理想方法，会使代赭石质地最酥脆，易于粉碎，使有效成份最易煎出，最能使炮制品中冲的含量(0.01%)符合药典要求，建议把砷的含量作为股代赭石的一个质量指标。

The existing non-standard equipment main products: Automatic coating machines, automatic捺印machines, automatic screw machine increases, the melting machines, automatic labeling machines, automatic tapping machines, manual tapping machines, automatic shear pin capacitance Machine, and so on, and in accordance with the specific needs of customers for non-standard equipment design and manufacture or transformation, in-depth, factory production mode, technical training to achieve stable production.

现有非标设备主要产品：自动涂布机、自动捺印机、全自动加拧机、熔着机、全自动贴标机、全自动攻牙机、手动攻牙机、全自动电容剪脚机等等，并可根据客户的具体需求进行非标设备的设计制造或改造，深入客户工厂生产调式、技术培训以达稳定生产。

Citric acid can reduce the Cr(superscript 6+) in sodium dichromate into Cr(superscript 3+) and react with to yield citric acid chromium chelate at 75℃.

在75℃下用柠檬酸将重铬酸钠中的Cr(上标 6+)还原为Cr(上标 3+)，同时与Cr(上标 3+)发生螯合反应，生成柠檬酸铬螯合物。

The mathematical models of the dynamic target and the tested apparatus are constructed with spherical trigonometry spherics. The general structure of the dynamic target is introduced. The performance, the detail of structure and selection of material of its main components are studied. The mass center and dynamic precision of the dynamic target, the static deformation of rotation arm are calculated and analyzed.

本文主要介绍了新型动态靶标研制的必要性、动态靶标检测的原理；运用球面三角学，建立了动态靶标与被测仪器间的数学模型；介绍动态靶标的总体结构设计，对各重要组成部分的功能、结构及原材料的选择等进行了详细的分析；对动态靶标的重心、旋转臂的静态变形及整机的动态精度进行了分析和计算；最后介绍了动态靶标的标定方法。

Starlite Forwarding Service Ltd. was established in Hong Kong in 1982. Since then, Starlite has accumulated over 20 years' excellent experience in the sea transportation services especially in transporting of containers between Hong Kong and the Pearl River areas, including domestic and cross-border shipping businesses. Starlite owns 7 self- propeller river vessels, each with capactiy of 112 TEU to 270 TEU and 4 Hong Kong sea barges, each with capacity of 100 to 200 TEU and with a total capacity of about 2,000 TEU of empty container. Starlite also has its own container trucks in Hong Kong and provides a complete transportation service to our customers.Starlite is one of the largest empty container transportation service companies with vast experience in the Pearl River region.

我司 於1982 年在香港注册成立，至今已有20多年的历史，目前己拥有7艏112至270 标箱的可经营中国内外贸兼营的内河自航集装箱专用船舶和4条100 至200 标箱的香港集装箱趸船以及香港集装箱拖车多部，总运力达2，000 个标箱，是珠江三角洲实力较强的集装箱水运企业之一并长期致力於集装箱物流业务，积累了丰富的集装箱物流的运输和交箱操作等一条龙服务的经验，特别是香港和珠江三角洲水域间的快捷空箱渡运业务。

This indicated that reduction environment in sediment was dominated by Fe(superscript 3+) but not.

这说明沉积物中是以Fe(上标 3+)的还原为主，而非SO(上标 2-下标 4)。

The main purpose of the present paper is to obtain the relation between the abstract presentation of Euclidean objectivity and its component representation with respect to the general curvilinear coordinate systems with a relative rigid motion under a fixed frame of reference, so that the tensor representation of Euclidean objective quantity has its component form.

建立了欧几里德标架无关性的一般表述与某一参考标架\phi 下作相对刚体运动的一般曲线坐标、分量表述之间的关系，从而使欧几里德标架无关性的张量表述有相应的分量表述形式。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。