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Through technical improvement of design of 550 kV/63 kA double-break and 363 kV/50 kA single-break circuit breaker, making use of computer analysis, increasing of the rated pressure of SF6 gas and opening velocity, improving the shape of arcing contact and nozzle, optimizing the structure of interrupter , 550 kV/50 kA single-break dead-tank circuit breaker is developed.

通过对550kV/63kA双断口断路器和363kV/50kA单断口断路器技术加以改进，利用计算机解析技术，提高了额定SF6气体压力和分闸速度，对弧触头和喷口形状进行了改进，优化了灭弧室结构，从而开发出550kV/50kA单断口罐式断路器样机。

The peripheral circuit of A/D, D/A, including the interface circuit and the anti-interference to the hardware is extended on the basis of ARM developed board.

在ARM开发板的基础上对A／D、D／A等外围电路进行了扩展，设计了信号放大、分压等接口电路，并加入相应的硬件抗干扰措施。

Barrier Gate. Unplug on three porcelain inserted into AC power safety plug, the blowing of the bondid, and fusealways have been resulting in phenomena: on the UN-effectual circuit (pulse－width electrocircuit) has no effect, the work will still be able to make its output stability and normal positive and negative 15 volts DC power supply voltage, and make the control circuit is working properly; and on the high current circuits works have a great effect, make it output a serious shortage, and cause the machine to the highest 速增 not.

关闸。拔下配电不活上的三个瓷插式互换电源保障插头查抄，发掘其洋一相的保障丝还来烧不续，并由此变成了此刻的本体：差小电流电路的处事操纵感化，仍可使其输入安定和变态的侧负15不起直流电源电压，并使把持电路的处事变态；而差不小电流电路的处事有很不小感化，使其输入惨重不敷，并导致机不缓增不到最矮不缓的本体。

In order to be able to drive three separated speed controllers I wanted to be able to isolate the output stages of the controllers to prevent possible unpredictable high current loops between circuits, this also allows us to run one or multiple batteries safely so I experimented with some designs, The opto isolator device (4N35) can be inserted at various strategic parts of the circuit and in fact it is often at the front end at the receiver input but I chose to isolate just the output stage as I will be adding the other channel circuitry to the same receiver and battery eliminator circuit voltage rails.

在为了能够驱动器3分离速度控制器，我想能够隔离输出阶段的控制器，以防止可能出现难以预料的高电流环路之间的电路，这也使我们能够运行一个或多个电池安全，使i试行了一些设计，光电隔离器装置（ 4n35）可以插入各种战略的部分电路，并在事实上它往往是在前端，在接收器输入，但我选择了孤立刚输出阶段，因为我会加入其他渠道电路，同时接收器和电池消除电路的电压轨。

6 Batteries, as described in 4.25.10, and battery chargers.(1) Battery connectors must be constructed of material with a V-0 flame rating or have a glow wire ignition rating of 750°C.(2) The battery charging system shall not present a risk of fire due to a short-circuit condition applied to any point in the length of a charger/battery interconnecting cable when tested inaccordance with 8.19.7.(3) During charging, battery-charging voltages shall not exceed the recommended charging voltages when tested in accordance with 8.19.6.(4) Battery chargers must be certified to the appropriate current national standard, for example UL, CSA, or equivalent standards body. 8.19.6 Battery Overcharge Test—Each battery shall be charged with its intended charger continuously for 336 h. The test shall not result in the release of electrolyte, or cause explosion or fire. 8.19.6.1 If the battery can be charged in the vehicle, place the battery in the vehicle and connect it to the charging circuit. Drape the charger, cable, and battery with a double layer of cheesecloth. The test shall not result in ignition of the cheesecloth or in the release of electrolyte.

4.25.10.6 电池(如4.25.10中的描述)和充电器(1)电池的连接器必须是使用UL94V0防火等级的材料做成的，或使用燃点为750度的发热线(2)按照8.19.7测试时，当在充电器和电池间的导线上的任意一点发生短路时，电池充电系统不允许出现着火的危险(3)充电时，按照8.19.6的测试方法，充电电压不允许超过推荐的充电电压(4)电池充电器必须通过相应的现行国家标准的认证，比如UL，CSA或等同的标准机构 8.19.6电池过充测试---每个电池都需要采用其默认的充电器连续充电336小时，测试不允许导致电极的泄露，导致爆炸或火灾 8.19.6.1若电池可以在交通工具上使用时，将电池放到交通工具上，并将之与充电电路连接起来，用双层粗棉布将充电器，连接线和电池遮挡起来。

After careful review, found that the motherboard does not have a capacitor blasting slurry, charred circuit boards and so on, so decided to check the clock circuit.

经仔细查看，没有发现该主板有电容爆浆、电路板烧焦等现象，于是决定先检查时钟电路。

As long as enhancing the control of the craft and choosing the appropriate material, the short –circuit and break-circuit of aluminum electrolytic capacitor can eradicate completely.

只要加强工艺的控制、选用适当的材料可以杜绝铝电解电容器的开路和假性短路现象的发生。

Firstly, the models of one unprotected circuit and three protected circuits were built and the formulas of arc energy for each circuit were given in this paper. Secondly, the experimental equipment of electrical life of relay was developed and the arc erosion status of contacts of breaking the inductive load with the four circuits was researched by experiments.

论文首先构建了无保护电路和3种有保护电路模型并给出了电弧能量的计算公式；然后研发了继电器电寿命实验装置并通过实验研究了上述4种电路中继电器开断感性负载时触点的电弧侵蚀情况。

INSTALLATION AND CONNECTION 1、Removing all parts of cover、rings、carbon brush、brush box、brush box shell and short circuit ring equipment(some motor have no short circuit ring equipment).

起动器装配完成后，将转子的出线接在起动器接线柱对应位置(对于有六根出线的电动机，应将同一相的两根导线，接在同一色的两个接线柱上)即可，具体接线如下图所示。

I don''t know, I think we need a couple of races to understand the picture better. I think maybe performance-wise maybe Red Bull is a bit ahead of everybody now, which is not a surprise because they finished 2009 very strongly, so they kept the momentum. But one thing is to be the fastest car and another thing is to win the race. We will try to push them again, and it will depend also circuit to circuit as we saw last year. Sometimes Brawn was very strong and sometimes they had difficulties. Hopefully here in Australia we can be strong and we can fight for the win.

我不清楚，我想我们仍需一些比赛来看清局势我想红牛赛车的性能可能领先于所有的车队，这并不足以惊讶，因为他们在2009赛季很强势，他们保持着优势不过最快的赛车与赢得比赛完全是两码事我们会尽力追赶他们，但这还要视赛道的情况而定去年我们也看到了，有时布朗GP很强势，有时候他们也遇到了困难希望我们在澳大利亚能够有竞争力，并为胜利而战

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。