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According to the present situation of Guangzhou subway line 4, a control system based on programmable logic controller is presented, which can be used to alternate the working mode of subway locomotives between contacting collector and pantograph for collecting current.

介绍受电弓和受流靴这两种受流器各自的优缺点及工作原理，并针对广州地铁4号线运行中的实际情况，提出了受流方式转换过程的技术要点，设计了一种由可编程序控制器为控制核心的系统，该系统可控制地铁列车在两种受流方式之间的转换。

The main subject of the analysis of the elements of color, the color composition in the role of photography and can be played by the effect of color in the composition in order to grasp the correct and clarify the current law of color photography to deal with errors and shortcomings.

本课题主要通过对色彩的要素的分析，阐述了色彩在摄影构图中的作用和所能起到的效果，从而把握色彩在构图中的正确规律并阐明现今摄影中色彩处理的误区和不足。

One, go up in existing foundation, farther perfect craft and equipment make oil be with colza raw material exemple, a lot of more current medium or small oily factory did not provide the facility that humeral mud makes the same score in special purify colza, and the other clear miscellaneous equipment that covers suitably to it.

一、在现有基础上，进一步完善工艺与设备以菜籽原料制油为例，目前很多中小型油厂都没有配备专门的去除菜籽中平肩泥的设备，以及与之相配套的其他清杂设备。

This current system reforms commissariat to be compared before together, having very big different.

这次粮食流通体制改革同以往相比，有着很大的不同。

Spokesman of National Development and Reform Commission said a bailout plan is going to be launched to boot the current auto industry.

在继股市、房市和固定资产投资领域外，作为国民经济支柱产业的汽车行业今后也有望获得救助。

China's current law, banks and trust companies can be commissioned to accept the loan.

中国的现行法律，银行和信托投资公司可以接受委托贷款。

The next Commodore will be smaller and lighter than the current car, with more efficient engine options underhood.

在未来的Commodore将小更轻，比目前的汽车，以更有效的引擎选择underhood 。

In comparison with the switches based on other polytypes of SiC, the design benefits from having fewer lattice mismatches between the SiCGe and 3C-SiC. A maximum common emitter current gain of about 890 and superb light-activation characteristics may be achievable. The performance simulation demonstrates that the device has a good I-V characteristic with a turn-on voltage knee of about 4V.

结果表明，与采用其他结晶类型的碳化硅衬底相比，SiCGe与3C-SiC间较小的晶格失配有利于提高器件性能，可使其最大共射极电流增益达到890，获得最好的光触发特性和较好的I-V特性，饱和压降大约为4V。

Based on power balance theory, the reference compensational current can be obtained.

根据功率平衡理论，可以确定参考补偿电流。

The complemental project improves the current infant mortality system. The failing report of mortality can be reduced in the new project.

补充方案可减少漏报，对现行报告制度进行了有效补充。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。