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Based on the definition of Boolean function on set and positive extension, The sufficient and necessary condition of PBF is proven. At last, an algorithm of generating MSP expression of stack filter positive Boolean function is presented taking advantage of Hasse diagram.

通过定义布尔函数开、闭集和最小项正、负扩展，证明了布尔函数具有层叠性的充要条件是布尔函数开集的正扩展或闭集的负扩展具有不变性，在此基础上，提出了一种通过Hasse图确定层叠滤波器最简正布尔函数的算法。

Based on the definition of Boolean function on set and positive extension, The sufficient and necessary condition of PBF is proven. At last,an algorithm of generating MSP expression of stack filter positive Boolean function ispresented taking advantage of Hasse diagram.

通过定义布尔函数开、闭集和最小项正、负扩展，证明了布尔函数具有层叠性的充要条件是布尔函数开集的正扩展或闭集的负扩展具有不变性，在此基础上，提出了一种通过Hasse图确定层叠滤波器最简正布尔函数的算法。

Take, then, your tasselled aegis, and shake it furiously, so as to set the Achaean heroes in a panic; take, moreover, brave Hector, O Far-Darter, into your own care, and rouse him to deeds of daring, till the Achaeans are sent flying back to their ships and to the Hellespont.

现在，你可拿起流苏飘荡的埃吉斯，奋力摇晃，吓返阿开亚壮勇。然后，我的远射手，你要亲自关心光荣的赫克托耳，给他注入巨大的勇力，直到阿开亚人撒腿逃跑，及至他们的海船和赫勒斯庞特的水流。

First was high-necked,then lower-neckd and collarless.Some sleeves of the cheongsam were longer to wrist,some are lower than elbow;The tapestry satin without the sleeve have double lapels, the clothes may long or to be short, and it only for the economical wealthy woman.

先是崇尚高领，后来又流行低领至无领，低到无可再低时，索性将领子取消，袖子时而长过手腕，时而又短及露肘，两边开衩开得很高，腰身变的极窄，进一步合体以显示出女性的体型曲线。

We have advanced imported equipment such as the panel saw from Germany, the timber we fell with which doesn't have any burst opening; the automatic extruder from Japan, which automatically seals the lines of planks, thus ensuring their quality; the row drill imported from Germany, which guarantees that wooden bolts and linkers instead of screws are used in installing the sideboard; and the hinge joint from Germany, with which we use for perforation, using the advanced German 32 positioning system.

我们有先进的进口设备，德国的开料锯，开出的木料没有爆口；日本进口的自动封边机，对板材进行自动封边，保证了品质；德国进口的排钻，保证了柜体安装使用木销和连接件，而不使用螺钉；德国的铰链机打孔，采用德国先进的32定位系统。

We had long thought of them as a tableau, Miss Emily a slender figure in white in the background, her father a spraddled silhouette in the foreground, his back to her and clutching a horsewhip, the two of them framed by the back-flung front door.

长久以来，我们把这家人一直看做一幅画中的人物：身段苗条、穿着白衣的爱米丽小姐立在背后，她父亲叉开双脚的侧影在前面，背对爱米丽，手执一根马鞭，一扇向后开的前门恰好嵌住了他们俩的身影。

The weather is extremely hot, for saving power bill, so Pamilla and Michico open the windows and doesn't turn on the air condition.

天气很炎热，为了省电，姨姨和妈妈都只有把窗户开很开。

From the view of torque controlling strategy, the relation between the torque controlling strategy such as the electric current feedback method、 PWM open loop method etc and the vehicle driving way is analyzed firstly, then the conclusion could be drawn that the PWM open loop method has more advantages than the electric current feedback method when they are both used in the same vehicle which is direct driving by hubcap motor. Secondly, based on the electric motor mathematic model and its experiment, a new permanent brushless dc motor phase electric current detector method in which a digital signal processor and single current sensor are used is introduced.

从转矩控制策略角度来看，分析了电流反馈法以及开环PWM电压调速控制方法与车辆的驱动方式关系，得出了电机驱动电压受限的情况下，无论是从对车辆的动力性能影响还是从对车辆的驱动要求来讲，开环PWM电压调速控制方法较电流反馈法更适用于以轮毂电机直接驱动方式的两轮电动车中；其次，根据电机的数学模型以及电机试验波形，提出了一种利用数字信号处理器以及单个电流传感器检测三相永磁无刷电机电枢电流的新方法，这种方法具有较强的适应性、实时性，它可以根据控制系统的要求，适时地提供所需电流数据，是目前许多文章关于无刷电机相电流平波的重要技术基础。

W hy do you think we can't change your note,on the contrary,we can.

你怎么知道我们找不开你的钱，恰恰相反，我们能找开。

24Th Harbin Int'l Ice and Snow Festival opens Fireworks are set off to mark the opening of the 24th Harbin International Ice and Snow Festival in Harbin, capital of northeast China's Heilongjiang Province, Jan.

美国性文化你躲也躲不开的"性"正如我之前曾经说过的，"性"充斥了美国社会的方方面面，是一个你躲也躲不开的事实。首先，让我们看看媒体。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。