The behavior of the optimizer is influenced by three key factors: the value of OPTCOMPIND parameter in the Informix configuration file, query directives, and the accuracy of internal statistics.
优化器的行为受三个关键因素的影响:Informix配置文件中OPTCOMPIND参数的值、查询命令和内部统计数据的准确性。
The result of comparison demonstrates that the device based on internal reflection effect has small size, simple structure and high accuracy and it can be used in the on-line production.
比较结果证明采用光学内反射角度细分法设计角度细分装置,不但能得到高的细分精度,而且装置体积小、结构简单,适于在线使用。
Generally, the internal forces of shells are analysed by the plate elements, but because of the slope discontinuity of internal boundaries, it always influences the accuracy of the solution.
一般常用薄板单元分析薄壳内力,但由于内部边界联接斜率的不连续性而影响到求解精度。
Due to lack of experimental data in the research of Internal-flow, the forecast of accuracy evaluation is restricted in the Internal-flow numerical CFD analysis.
在水力机械的内流研究中由于缺少试验数据,使得在采用内流数值CFD分析中内流预测准确性的评价受到制约。
The accuracy of the rotor speed estimation in speed sensorless vector control system of induction motor under load is sensitive to parameter errors of the internal machine model.
在感应电动机无速传感器矢量控制系统中,在负载条件下转子速度估计的精确度对电机内部模型参数误差非常敏感。
By adopting appropriate foundry techniques, the accuracy of dimension and shape were ensured. The surface quality and internal density of runner meet the requirements of design.
通过采用合理的铸造工艺,确保了其叶片型线尺寸精度、转轮表面质量及铸件内部的致密度满足了设计要求。
The report talks about the principles, structure, accuracy analyses, main technical data, characteristics, adjustment and application of a new type internal focusing device for centring.
本报告介绍了一种新型内调焦对心器的原理、结构、精度分析、主要技术参数、特点、仪器的调整及使用。
To ensure accuracy of the results, CD45/SSC gating and normal cells as internal reference should be used in the immunophenotyping of abnormal cells.
为保证实验结果的准确性,在对异常细胞免疫分型时应以CD45/SSC 设门和正常细胞作内部参照。
Increasing the pressure measurement accuracy, it can promote the research of the internal ballistic theories.
提高压力测量的精度,能够促进内弹道理论研究。
This paper introduces a processing method for deep internal spline gear with high accuracy.
介绍了一种加工精度高、超设备加工能力的深内花键齿形零件的加工方法。
These kinds of models can demonstrate the internal parameters of the engine with rather high degree of accuracy but reasonable amount of calculating work.
这种模型既能反映柴油机内部各参数,精度较高,计算工作量也比较适中。
Objective to establish internal quality control to distinguish the quality of diagnostic Kit and control operate error and improve the accuracy of HBsAg detection.
目的建立室内质控参考品以鉴别诊断试剂的质量和控制操作误差,提高乙型肝炎病毒表面抗原的检测准确度。
The main purpose of the work described in this paper is to improve the accuracy of rotor blade dynamics analysis, especially, that of internal force calculation by the finite element method.
提高用有限无法进行桨叶动力分析、特别是内力计算的精度是本文工作的主要目的。
Secondly, analyze the location accuracy and stability, because the location system may be affected by the internal disturbances of ICPT system circuit.
其次,针对定位系统可能受到导轨式ICPT系统电路内部干扰而影响定位系统的精度和稳定性进行了分析。
Numerical simulations show that the proposed controller containing some disturbance internal models can improve the formation maintaining accuracy a lot for the elliptical orbit.
仿真结果表明,在椭圆轨道的编队维持控制器中引入部分干扰内模可大幅度提高维持精度。
The metronome is for setting the tempo and for checking your accuracy. It is not a substitute for your own internal timing.
节拍器是用来设置节拍并且检查准确性的,但是它却不能代替你心里内心的“自我节拍器”。
Moreover, the overall stability of structure depends on the accuracy of penetration depth and internal stress.
板桩墙的入土深度和内力是否准确关系到整个码头结构的稳定性。
The definition of absolute internal potential Angle is introduced, and a method to measure it and to obtain relative internal potential Angle with high accuracy is proposed.
介绍了绝对内电势角的定义,并提出一种测量绝对内电势角,进而获得高精度的相对内电势角的方法。
The method has high accuracy being used to calculate internal ballistic performance of other grain configuration motor and plays a important role in spinning motor design.
文中提供的计算方法具有较高预示精度,可推广到其它药四旋转发动机的内弹道计算,对旋转发动机设计具有指导作用。
The internal surface processing of hydraulic cylinder requires high accuracy of size, shape, and good deformed surface finish.
液压缸内表面要求较高的尺寸精度、状精度以及适宜的表面粗糙度。
Abstract: One of the most important factors to depress the accuracy of position tracking is the internal and external uncertainties always existing in the system.
摘要:影响位置跟踪精度最重要的因素之一是系统不可避免地存在内外不确定性。
In fault calculations, the selection of models is very important for improving calculation speed and accuracy, reducing the occupation of internal memory and extending network scale.
故障计算中模型的选择对于提高故障计算速度和准确性,减少内存,扩大网络规模是至关重要的。
The work summarized in this paper aims at improving the accuracy of rotor blade dynamics analysis, and that of its internal force calculation in particular, by the finite element method.
提高用有限元法进行桨叶动力分析、特别是动内力计算的精度是本文工作的主要目的。
The use of sequential rely feedback tests for system try to obtain a more accuracy process model, to design PID controller method based on the internal model control principle is presented.
提出采用连续继电反馈实验辨识高精度的过程模型,基于内模原理设计PID控制器的方法。
The use of internal standards can well correct the ion suppression (or enhancement) induced by co-eluting components present in the sample extracts, and improve the quantitative accuracy.
内标物质的使用可有效消除环境基质引起的仪器离子抑制现象,使定量更加准确。
With the airbag internal capsule and continuous spring ring structure, grinding vibration is decreased and machining accuracy is improved.
采用气囊式内胎和连接式弹簧环结构减少磨削中振动影响,便于控制砂轮表面砂带的张紧力。
The method is not influence for sodium ion in sample, and not polluted by internal and foreign matter. And it has high specificity, precise testing result, and good accuracy.
该方法特异性高,不受样品中钠离子的影响,也不受内、外源腺苷三磷酸的污染,测试过程灵敏、结果准确。
The method is not influence for sodium ion in sample, and not polluted by internal and foreign matter. And it has high specificity, precise testing result, and good accuracy.
该方法特异性高,不受样品中钠离子的影响,也不受内、外源腺苷三磷酸的污染,测试过程灵敏、结果准确。
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