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It also can realize asynchronous serial communications with the computer which connects with it to make up network to show the computer and network's advantageous lightly and improve its intelegence.

ADE7755引脚F1和F2一较低频率形式输出有功功率平均值,能直接驱动机电式计度器。引脚CF以较高频率形式输出有功功率的瞬时值,用于校验。

In order to probe into the anti-friction mechanism and effectiveness of turbulent zone of flexible pipe ,extensometer with high accuracy and high-frequency response characteristics is used to study the frequency variation feature of flexible pipe s outer diameter with Reynolds number.

为探讨柔性管的紊流区域减阻效果的产生机理,采用高精度高频率响应特性的应变仪对柔性管外径随雷诺数的频率变化特性进行了研究。

The different width and length of Hilbert curve geometries were investigated by finite element method. The computation results show that the DGS rejects the signal at two frequencies 2.43 GHz and 7.11 GHz from 0~9 GHz with more than -15 dB suppression. Q factors of the Hilbert curve DGS is bigger than that of conventional DGS.

通过有限元法对不同Hilbert曲线宽度和长度的DGS结构微带线进行计算,计算结果表明,该结构在0~9 GHz频段内表现出2.43 GHz和7.11 GHz这2个谐振频率,对应频率的通带反射损耗低于-15 dB,并且阻带特性在谐振频率处比传统DGS微带线有更高的 Q 值。

In order to improve the frequency resolution, realize high precision frequency estimation, this thesis proposes the high resolution polynomial Wigner-Ville distribution using Chirp-Z transform, the validity of this algorithm is verified using synthesized data.

为了提高基于FFT的谱分析算法的分辨率,实现高精度的频率估计,提出了利用Chirp-Z变换的频率高分辨多项式Wigner-ville分布,并用合成的仿真数据,验证了上述算法的有效性和正确性。

The frames with low and slowly changing average instantaneous frequencies were identified to be the periodic sonant segments and the frames with high average instantaneous frequencies were identified to be the surd segments based on the characteristics of the average instantaneous frequencies of IMFs derived from speech signals.

根据语言信号特定阶IMF平均瞬时频率的特征,将平均瞬时频率低且变化缓慢的语言帧作为周期性强的浊音段,而平均瞬时频率高的语言帧判别为清音段,组合处理后的结果最终得到语音段数据。

First, the methods and procedures of general three orders nonlinear identification are summarized and the results are frequency functions described by basic and high order spectral density functions and frequency response functions.

得到的结果是用基本的和高阶的谱密度函数以及基本的和高阶的频率响应函数表示的频率函数。

The average of hearing threshold shifts at high frequencies(4k, 6k, 8kHz) is considerably larger than that at low frequencies(0.5k, 1k, 2k Hz). The moderate to severe degree of hearing loss of the paper mill workplace of subjects showed maximum notches at the frequency of 4 kHz. The noise-exposure group grades of DNA damage were significantly higher then the controls.

经扣除年龄老化因素所得到的听力损失修正值,结果显示在谈话性低频率0.5KHz、1 KHz中,女性比男性听力损失严重,并以女性、≧50岁、右耳、1 KHz 之平均值39.0±17.2dB为最高值,而於高频率2KHz至8 KHz中,不同年龄层之比较,以男性、≧50岁、右耳、8KHz之平均值49.0±27.1dB为中度至重度听力损失情形。

The method of equal accuracy frequency measure can remove the errors of unitage and keep the high accuracy constant in the whole measure frequency segment. So the signal frequency has measured is high or low can't influence its accuracy.

等精度频率测量方法消除了量化误差,可以在整个测试频段内保持高精度不变,其精度不会因被测信号频率的高低而发生变化。

BAW is used to on-line monitor the effluent from IC column.

在实际中,以SPQC-BAW技术对离子色谱流出物进行在线监测,可得到响应信号为频率的色谱图,具有很高的灵敏度;利用本室设计的频率/电压转换电路可将频率数字信号转化为模拟电压信号,从而为常用的色谱工作站或色谱数据处理设备接收、利用和处理,实现IC-BAW自动化分析。

By parameter(tower total height, shell thickness, meridional curvature) analysis of cooling-tower natural frequency, we find that, the basic natural frequency of cooling tower is sensitive to the top meridional curvature, an approximate formula is proposed based on the parameters, which can estimate the basic natural frequency of cooling tower.

通过对冷却塔自振频率的参数分析,如塔体整高、塔壳厚度、子午线曲率等,发现基础频率对上部子午线曲率较为敏感,并给出了用于估算大型双曲冷却塔基础频率的三参数公式。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。