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This paper uses FPGA chip as the control core to design the induction machine direct torque control system and uses VHDL to program the system fuzzy control software.

本文以FPGA芯片为控制核心设计了感应电机直接转矩控制系统，用VHDL语言编写了系统的模糊控制软件。

Kang Jia S909 uses airframe of slip lid type to design, whole exterior uses piano black match with argent frame, ply

康佳S909采用滑盖式机身设计，整个外观采用钢琴黑配以银色的边框，厚度

The U.S. system uses six different capital weightings for bonds according to their credit risk, and the Japanese system uses three.

美国的体制根据债券的信贷风险对债券使用六种不同的资本权重，而日本的体制只使用三种。

The USM is a kind of new electrical motor which develops in recent 20 years, it broke through the traditional concept of electrical motor. It didn"t have the electromagnetism winding and the magnetic circuit, and it didn"t uses the mutually electromagnetism to transform the energy, moreover, the volume of electrical motor is small, the weight is light, the transfer efficiency is high. For it was so small, so light, and so thin, it have begun to use on automobile. But the usage of superconductivity electrical motor is still in the experimental stage at present. The main reason is that the super conductivity material has not realized the high temperature, but with the development of technical, the possibly uses of superconductivity electrical motor in the big horsepower like automobile generator and on actuation electrical motor causes the electrical machinery to be smaller in volume, lighter in weight, and higher in efficiency.

超声波电机是近二十年来发展起来的一种新型电机，它突破了传统电机的概念，没有电磁绕组和磁路，不用电磁相互作用来转换能量，体积小、重量轻、转换效率高，很小、很轻、很薄，在汽车上已经开始使用；超导电机的使用目前还处在实验阶段，这主要的原因是超导材料还没有实现高温化，但是，随着技术的发展，超导电机可能使用在汽车的起动机和驱动电机这些大马力上，使原有的电机体积更小，重量更轻，效率更高。

In the jig design process, mainly locates by V shape block and the support plate, depends on the straight clamp and the spring clamps, drills turns diameter two to be supposed to use long trades quickly drills the wrap, when drills turns the diameter incline hole uses the plane incline the jig body, when drills turns the diameter incline hole uses is the horizontal-type drilling machine, when face milling 2 V shape blocks and the milling cutter cannot interfere ,therefore V shape block altitude must reduce, the jig design must be convenient, be simple.

在夹具的设计过程中，主要以V形块和支承板来定位，靠直压板和弹簧来夹紧，钻拐径两孔应采用长型快换钻套，在钻拐径倾斜的孔时采用平面倾斜的夹具体，在钻拐径倾斜的孔时使用的是卧式钻床，铣面时2个V形块与铣刀不能干涉，因此V形块高度要降低，夹具设计要方便、简单。

In the actuation circuit design, uses the three-phase Y joint all to control the electric circuit, uses six high speed MOSFET switching valve to compose.

在驱动电路设计中，采用三相Y联结全控电路，使用六支高速MOSFET开关管组成。

Once the price of farmland returns to its proper level, in addition to the land that is converted to grasslands, ponds, and other such uses through suitable guidance and assistance measures, we can also transform large amounts of farmland to low-cost, high-efficiency uses through integration and rezoning, and create brand-new methods of production that feature a high degree of efficiency.

当农地的价格回归其应有水准，透过适当的引导与辅助，除了转为草地、水塘等用途的土地之外，我们可将大批农地透过整合、重划，投入低成本、高效益的用途，创造出崭新的、具有高度竞争力的生产方式。

The scientist has thought of two solutions: One kind is the gas floats the law, even if the train massive jet uses its reaction to the railway rail ground to do the best you can the train to float off; Another kind is magnetism floats the law, namely uses between two magnetic poles of the same name between the magnetic repulsions or two different famous magnetic poles the magnetic attraction causes the train to surface the boat from the railway rail.

科学家想到了两种解决方法：一种是气浮法，即使火车向铁轨地面大量喷气而利用其反作用力把火车浮起；另一种是磁浮法，即利用两个同名磁极之间的磁斥力或两个异名磁极之间磁吸力使火车从铁轨上浮起来。

In order to prevent this kind of pollution, often spreads the organosilicon water-repellent, the polymer cement mortar, the emulsion resin, the epoxy resin etc on the inside surface of the quartz stone , although it can have certain protection effect, but also has the following insufficiency: Uses organosilicon water-repellent processing, the quartz stone material, cement and the mortar cannot form a sealed surface layer, is unable to suppress the hoar frost separation and the rain spot effectively; Uses polymer cement processing, not only material itself includes the hoar frost ingredient, moreover the water permeability is big, the protection effect is also not ideal

为防止这类污染，常在石材内面涂上有机硅防水剂、聚合物水泥砂浆、乳液树脂、环氧树脂等，虽能收到一定的防护效果，但也存在以下不足：采用有机硅防水剂处理，石材与砼、砂浆被贴面不能形成密封层，无法有效抑制白霜析出物和润斑；采用聚合物水泥处理，不仅材料自身含有白霜成分，而且水渗透率大，防护效果也不理想

Top real-time fault-tolerance uses real-time fault-tolerant techniques as resume execution or re-execution and adopts the H-FTF scheduling method. And, based on time redundancy, bottom real-time fault-tolerance uses real-time fault-tolerant techniques as alternate version or re-execution and adopts the FT/FA scheduling method and the DSC-EDF algorithm. Moreover, two real-time fault-tolerant evaluations are added to the mechanism.

其中，上层实时容错采用恢复执行或重新执行的容错技术，提出动态实时容错的分级容错优先H-FTF调度方法，实现了DRTAS系统级的实时容错；下层实时容错以时间冗余为基础，采取替代版本或重新执行的容错技术，提出容错/频率保证FT/FA调度方法、动态空闲能力最早时限优先DSC-EDF算法，在实时内核级为实时任务提供实时容错保障。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。