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bit
相关语句
  钻头
    The Study on Wear Regularity, Design and Performance Test of Diamond Bit and Diamond Saw
    金刚石钻头和金刚石锯片磨损机理、设计及性能测试研究
短句来源
    Impact action bit
    冲击式钻头
短句来源
    THE RESEARCH OF WH-1 TYPE ELECTROPLATED DIAMOND BIT AND ITS APPLICATION IN THE HARD, COMPACT AND LOW-ABRASIVE FORMATIONS
    WH-1型电镀金刚石钻头的研制及其在坚硬、致密和弱研磨性地层中的应用
短句来源
    Drilling Test of XQG75 Scraping Bit Made by Nodular Cast Graphite Iron
    XQG75球墨铸铁刮刀钻头
短句来源
    The Model of the Comprehensive Effect Evalution on Diamond Bit
    金刚石钻头综合效益评价模式
短句来源
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  “bit”译为未确定词的双语例句
    The Influence of Cutting Element Dimension,Linear Speed and Bit Load Stabilization on Chip Grain-Size and Effect of Rock Failure
    切削具的线性尺寸、线速度、轴载的稳定性对岩屑粒度和破岩效率的影响
短句来源
    While the values of(La/Lu)N,(La/Yb)N and(Gd/Yb)N in core DD2 sediments change less with the depth,a bit less than those in the Yellow River sediment and much less than those in the Yangtze River sediment. However,value of(La/Sm)N changes greatly with depth,and is more approximate to that in the Yangtze River than that in the Yellow River.
    [w(La)/w(Lu)]N、[w(La)/w(Yb)]N、[w(Gd)/w(Yb)]N的变化相对较小,且这3个参数的值略小于黄河沉积物的值,而远小于长江沉积物的值,但[w(La)/w(Sm)]N的变化大,且与长江沉积物的值更为接近。
短句来源
    Average values of δ(Ce) and δ(Eu),0.92 and 0.66 respectively,indicate that Ce is a bit depleted and Eu is strongly depleted.
    DD2孔沉积物的δ(Ce)和δ(Eu)平均值分别约为0.92和0.66,即Ce为弱亏损,而Eu异常明显。
短句来源
    MODELING METHOD FOR WEIGHT_ON_BIT OPTIMIZING MODEL BASED ON ARTIFICIAL NEURAL NETWORK
    基于人工神经网络的钻压优化模型的建模方法
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    A Bit of Cognition Upon Gaslogging Technology
    对气测录井技术的几点认识
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  bit
Experimental results show that the proposed approach can reduce the computational cost of full search and fast multi-block motion estimation by 80 % and 45 %, respectively, with similar visual quality and bit rate.
      
The proposed algorithm also reduces by 75 % the computational cost of the large-small mode isolation algorithm for low-motion sequence coding, and with 0.06 PSNR gain and 3.7 % reduction in bit rate.
      
In underwater acoustic communication, because the available bandwidth of the channel is severely limited, the direct-sequence spread-spectrum scheme can only be realized at low bit rates.
      
The bit error performance is correlative not only with the interference-signal ratio (ISR), the frequency offset and the phase of the CW interference sensitively, but also with the individual spread spectrum code sequence.
      
DCT_M model for excitation parameter in low bit rate vocoder
      
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This paper has provided a verification on some informations about the great Earthquake which occurred in southern part of Shandong Province on July 25,1668,written both in "The Chronological Table of the Earthquake Informations in China" and in "Earthquake Catalogue of China".It has also held that the southern boundary for its meizoseismal area and its heavily damaged area plotted in "Earthquake Catalogue of China" would adequately extend a bit southwards as shown in the plot of this paper.

本文提出了在《中国地震资料年表》和《中国地震目录》中,关于1668年7月25日鲁南大震的一些资料的考证。并认为在《中国地震目录》中所画的该震的极震区及重破坏区的南界还应象本文图中所画的那样适当地向南延伸一些。

This paper deals with the principle of compressing the geopnone signal to one bit recording by means of the pseudo-random code theory. For the first time it gives a mathematical model of amplitude recovery. By way of a simple example, the paper describes the process of compressing the geophone signal to one bit recording and the recovery of the amplitude. Some preliminary observations are made on the following problems such as the accuracy of amplitude recovery of one bit recording and the...

This paper deals with the principle of compressing the geopnone signal to one bit recording by means of the pseudo-random code theory. For the first time it gives a mathematical model of amplitude recovery. By way of a simple example, the paper describes the process of compressing the geophone signal to one bit recording and the recovery of the amplitude. Some preliminary observations are made on the following problems such as the accuracy of amplitude recovery of one bit recording and the difference between one bit recording and sign bit recording and so on. The possible applications of this technique are suggested as well.

本文论述了利用伪随机码理论,把地震信号压缩成一位记录的原理.首次提出了一个振幅恢复的数学模型.通过一个简单实例介绍了地震信号被压缩成一位记录以及它的振幅恢复过程.文章还初步讨论了一位记录振幅恢复的精度以及一位记录和符号位记录之间的差别等问题.对于采用一位记录进行地震勘探提出了一些设想.

At present, seismic prospecting is the major means of searching for oil and gas, and extracting velocity information, e. g. to find the velocity spectrum, from seismic data, is the key link of seismic data processing. The conventional velocity spectrum is derived from the recorded floating point seismic data. By using the sign bit of the original seismo-gram, one can obtain a sign bit seismogram indicated by binary digit. Based on the principle of the least square method, it has been proved that,...

At present, seismic prospecting is the major means of searching for oil and gas, and extracting velocity information, e. g. to find the velocity spectrum, from seismic data, is the key link of seismic data processing. The conventional velocity spectrum is derived from the recorded floating point seismic data. By using the sign bit of the original seismo-gram, one can obtain a sign bit seismogram indicated by binary digit. Based on the principle of the least square method, it has been proved that, under certain assumption conditions, the velocity parameters could be drawn from the calculation for sign bit data, the process of the calculation is similar to that of the correlation analysis. By the method introduced above, it is possible to save the internal storage and the operating time in a big way.

地震勘探是目前寻找石油、天然气的主要手段,而从地震数据的分析中提取地层的速度资料—速度谱—又是地震数据处理中的重要一环.常规速度谱是对记录到的浮点地震数据进行计算的.取原始地震记录的符号位可得到每个数据只用一个二进位表示的符号位地震记录.本文用最小二乘法原理论证了在一定的假定条件下,可以对这种符号位数据进行类似于相关的运算—符号谱—来提取速度参数.这种方法从计算角度上讲能大大节省机器的内存和运算时间.本文从符号位把地震记录改造成等振幅波这一特性出发论述了符号谱具有能量团集中、分辨率高、层次清楚、连续性好、容易突出中、深层弱能量反射波和压制一些强随机干扰的特点.本文提出并讨论了实现符号谱的比较好的算法,并且在719机上进行了实践.实践结果证明,计算一个符号谱比做一个常规相关谱节省了40%的时间.本文附有用实际资料作符号谱和常规相关谱计算所得结果图的比较.比较全面地证明了上述符号谱的特点.

 
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