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optimum references
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     The sensitive points are considered as the optimum references for cam detection in the theory of lift change rate. From which,the formula is derived for the calculation of sta rting angle. Also,the sensi-tive-points-as-reference operati ng process and skills are presented f or the determination of starting angle of cam detection.
     运用“升程变化率”理论证明“敏感点”是凸轮检测最佳基准,推导出了凸轮检测起始转角计算公式,介绍了在凸轮检查仪上以“敏感点”为基准确定凸轮检测起始转角的操作过程和技巧。
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  相似匹配句对
     optimum of quality;
     ③生产质量最佳化;
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     27 references.
     文中引用参考文献27篇。
     References 481.
     引用文献481篇。
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     and its price is optimum.
     材料来源广泛.价格适中,容易推广使用;
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In this paper optimum signals with an energy constraint are studied for active sonar detection. It is proved that the optimum signal is the solution of a homogeneous nonlinear integral equation and the optimum reference function of the correlation receiver is the same as this signal, if the target and the medium scattering functions and the reverberation distribution are symmetric. For the channel of which scattering function is symmetric and independent of delay, it is further shown that only...

In this paper optimum signals with an energy constraint are studied for active sonar detection. It is proved that the optimum signal is the solution of a homogeneous nonlinear integral equation and the optimum reference function of the correlation receiver is the same as this signal, if the target and the medium scattering functions and the reverberation distribution are symmetric. For the channel of which scattering function is symmetric and independent of delay, it is further shown that only the frequency-dependent magnitude function of optimum signal is required to consider and we have a free choice of its frequency-dependent phase function.

本文研究仅能量受限下有源声呐检测最佳波形。证明当混响、介质传播和目标散射过程的散射函数为对称函数时,相关接收机的最佳参考波形和最佳检测波形相同,最佳检测波形为一非线性齐次积分方程的解。如果进一步假定散射函数与时延无关,文中证明了最佳检测彼形仅取决于它的幅频特性而其相频特性的选择可自由。本文所得的结论把匹配滤波器的理论推广到存在混响和回波畸变的信道。

In this paper a new method was provided to judge programmes. The method,based on the main characteristics of the relational analysis in the Grey-System Theory, can gain, from number-series of technique economic evaluation indecies of various programmes, the optimum reference one. Then a caculation of the relational degree between the index number-series of the programmes and the optimum reference number series results in a relational sequences, which is the priority order of the programmes.The method...

In this paper a new method was provided to judge programmes. The method,based on the main characteristics of the relational analysis in the Grey-System Theory, can gain, from number-series of technique economic evaluation indecies of various programmes, the optimum reference one. Then a caculation of the relational degree between the index number-series of the programmes and the optimum reference number series results in a relational sequences, which is the priority order of the programmes.The method has an advantage of converting mutual complementig and an uncomparable technique economic indecies into comparable and numerical ones and particularly providing a simple and feasible method for selecting system programmes from multi-evaluation indecies.

本文提出了一种新的方案优劣评判法.它是利用灰色系统理论关联分析的基本性质,根据诸个方案的技术经济评价指标数据列,构造出最优的技术经济指标参考数据列,通过诸个方案的指标数据列对该最优参考数据列关联度的计算,获得关联序,便是方案的优劣次序. 这种评判法的优越性在于能够把相互间互补的、不可比的技术经济指标变成可比的、可量化的.特别是对于多评价指标的系统方案选择、提供了一个简单可行的方法.

The optimum conditions of determinating iron with differential spectrophotometry have been selected with the help of orthogonal test. The conditions are 1,10-phenanthroline (3ml, 0. 5%),NH_2OH·HCl(1ml,10%) and NaAc (5ml, 1mol/L). Based on experiment it is established the optimum reference solution 50 ml in which iron concentration is 10μg/ml. This method has been applied for determinating iron of high content and normal content in iron ore and silicate with satisfactory result.

本文用正交试验法选定了以邻菲罗啉为显色剂差示法测铁的显色条件是10%盐酸羟胺溶液1ml,0.5%邻菲罗啉溶液3ml和1mol/L的醋酸钠溶液5ml,实验确定了最佳参比液50ml.浓度为10μg/ml,在此基础上拟定了铁的差示光度测定方法。该法用于铁矿及硅酸盐中高含量、常量铁的测定,结果令人满意。

 
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