查询词典 degree of accuracy

Engineering geological environment evaluation relation to naturalism, economy, environment, engineering etc and various factors have variant influence degree. Presently, most of cities in China use method of qualitative analysis in engineering geological environment evaluation and this method has many shortcomings, such as need great investigation workload, difficultly unified standards, lowly spatialization accuracy, quantitative study is not easy and with great subjectivity in city planning.

城市工程地质环境评价涉及到自然、经济、环境、工程等多方面，且各因素对评价目标的影响程度也不同，而目前我国大部分城市在进行工程地质环境评价时多采用定性分析的方法，这种方法的调查工作量大，标准较难统一，空间定位精度较差，不易进行定量研究，使城市规划工作带有较大的主观性。

In this experiment, working efficiency and mental fatigue degree were quantitatively measured, analyzed and evaluated through charactering the gross of letters crossed out and reading accuracy as objective indexes for appraising reading environment.

实验将一定时间内被试者在一定阅读环境内阅读作业中工作量和阅读作业准确率作为评价阅读者疲劳程度和阅读环境优劣的客观指标。

Combined with the requirement of real project,the statistic concept of believing degree is introduced into feature extraction and a dynamic algorithm for effective feature extraction is proposed,which is based on accuracy requirement and capable of constringing the feature dimension while reducing leaked or pretend alarm probability.

结合实际工程中的某些要求，将统计学中的置信度概念引入特征提取中，提出了一种按照精度要求进行有效的特征提取的算法，该算法能够实现在抑制漏警错误或者虚警错误的同时降低特征维数的功能。

Combined with the requirement of real project,the statistic concept of believing-degree is introduced into feature extraction and a dynamic algorithm for effective feature extraction is proposed,which is based on accuracy requirement and capable of constringing the feature dimension while reducing leaked or pretend alarm probability.

摘 要：结合实际工程中的某些要求，将统计学中的置信度概念引入特征提取中，提出了一种按照精度要求进行有效的特征提取的算法，该算法能够实现在抑制漏警错误或者虚警错误的同时降低特征维数的功能。

Put forward improvement DF algorithm and TD-IDF algorithm, the time that used DF algorithm to have linear on one hand is complex degree, suit the characteristic that large-scale text handles quite, adopt the method that adds a keyword appropriately, the insufficient; that made up for its to filter to mistake of individual and useful information on the other hand, use a feature the weight that chooses level in the feature undertakes adding counterpoising handling to TD-IDF method, the dimensions of documentation collect expanded below the circumstance that does not increase expenditure, still raised likeness to spend calculative accuracy.

提出改进的DF算法和TD-IDF算法，一方面利用了DF算法具有线性的时间复杂度，比较适合大规模文本处理的特征，并通过适当增加关键词的方法，弥补了其对个别有用信息错误过滤的不足；另一方面，利用特征项在特征选择阶段的权重对TD-IDF方法进行加权处理，在不增加开销的情况下扩大了文档集的规模，还提高了相似度计算的精确度。

According to verifying 11 vacuating wells parameters such as structure and sand body thickness that have been predicted by model, it shows high coincidence rate of more than 90% to real datum. Moreover, the permeability variation in pilot site accords with water flooding situation. The computed parameters such as reserves, cumulative oil production of single well and area, water cut have small relative error of less than 2%, the matching accuracy degree is high.

通过11口抽稀井检验，模型预测的构造、砂厚等参数与实际情况相比，符合率在90%以上；试验区的渗透率变化与水淹状况也具有较好的一致性；储量、区块及单井累积产油量、含水等参数计算的相对误差均小于2.0%，拟合精度高。

This cone of concentricity and face runout vertical degree and CNC machine tools with a common location in a process out of the valve stem is easier to FILTER SERIES ensure design accuracy, while reducing the processing cost.

这样锥面的同轴度和端面的垂直度和跳动度用普通数控机床可以在一次定位中加工出来，阀杆的设计精度就比较容易保证，同时降低了加工成本。

By the use of Circling cluster and Envlopment theory and flat surface sit-mark transformation theory, the chain wheel tooth equation of roller chain at high speed to match conjugage engagement is deduced.Establishing chain speed equation of roller chain at high speed,based on the analysis of the speed curves between roller chain at high speed and common roller chain,good drive of roller chain at high speed is verificated theoretically.By a example that move distance from transverse vibration between roller chain at high speed and common roller chain is contrasted,the accuracy of those theories that the paper brings up and higher functions of roller chain at high speed is proved.Finally, Establishing conjugage engagement line equation of roller chain at high speed and analyzing the complete engagement zone, the chain wheel tooth curve equation is studied at a higher degree. At the same time,the lack's place of the research result is pointed out.

依据高速滚子链设计要求与H_y-V_0齿形链的研究，阐述了滚子链传动实现准共轭啮合理论可能性；利用圆族包络法结合平面坐标变换理论推导出了满足共轭啮合的高速滚子链的链轮齿廓曲线；建立起高速滚子链链速方程，通过对高速滚子链与普通滚子链链速曲线的对比分析，从理论上验证了高速滚子链具有良好的传动性能；最后，建立起高速滚子链共轭啮合线方程，对其整个啮合区间进行了分析，进一步研究了链轮齿廓曲线方程，确定了主要参数的设计方法的问题，并同时指出了不足之处。

Secondly, in the fourth section, the three-branch utility indifference pricing models in the multiperiod securities markets,two-period pricing models when existent non-tradable assets and one of special mix models are studied.At the same time, analyse and compare the result of the special mix models.In particular,this paper obtain that the utility indifference pricing is same to the no-arbitrage pricing,thus it prove the paper conclusion accuracy in the certain degree.

其次，在本文的第四章中，研究多时段三叉树效用无差别定价模型以及存在不可交易资产的二期定价模型；研究了一类特殊混合定价模型，并对这些定价结果进行了分析，在特殊情况下，得到的效用无差别定价与无套利定价是相同的，从而，在一定程度上反映了本文结论的正确性。

The calibration approach can compensate at certain degree for the robot absolute location error in local space, and the gross measure accuracy of the vision system can meet the demand for off-line programming.

此标定方法在局部空间可在一定程度上补偿机器人的绝对定位误差，标定后的视觉系统综合测量精度满足离线编程的需要。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。