查询词典 maximum error

The result is evaluated using mean absolute error, maximum absolute error and minimum absolute error.

所选用的精度指标包括：绝对值平均误差、绝对值最大误差以及绝对值最小误差三种。

The test result shows that the instruments at the same accuracy grade provide different cycling error, so it is necessary to provide maximum cycling error to guarantee all of the measurement errors within the limited range.

试验结果表明，相同准确度等级的仪表，其回转误差优劣相差很大，因此，必须提供仪表最大回转误差，以确保所有测量误差处在限定范围之内。

The arc data interpolation error by secant, tangent and chord, and the smallest error by secant mode is analyzed in this paper. The relation between the maximum radial error and arc radius and approach step-length in the secant mode of arc data interpolation in CNC system is detailed.

在分析数控系统圆弧数据插补割线方式较切线、内接弦插补方式误差更小的基础上，讨论了数控系统圆弧数据插补割线方式中最大径向误差与圆弧半径和逼近步长的关系。

It showed the correctness of the criteria of roundness error and relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle and the effectiveness of the methods for evaluation of roundness error.

也验证了圆度误差判别准则及最小区域圆、最小外接圆和最大内接圆特征点间的相互关系的准确性和误差评定方法的有效性。

By the method of daily objective analysis and EOF analysis, these reasons of sample leading to big forecasting error are analyzed, the characteristic vector field of maximum temperature、minimum temperature、foehn day and all the big forecasting error day is studied, the result is concluded that the major factor in Shijiazhuang area and its country is hardly same, the foehn effect is the important factor causing forecast error.

进而对温度预报误差较大的样本出现原因进行了逐日客观分析，并通过自然正交函数分解方法，对不同情形下石家庄及周边县站极端最高、最低气温EOF分解特征向量场的变化特征对比，推断出影响石家庄及周边县市气温预报偏差的主要因子大致相同，焚风是导致温度预报出现较大误差的重要原因。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

Because the value estimated of reliability characteristic parameters has large error when the number of failure data is fewer by using maximum likelihood estimator, a modified maximum likelihood estimator has been put forward.

本文研究了环境温度、接触压力及电负载对继电器接触可靠性的影响，研究了继电器在常用负载—低电平和中等负载下发生接触失效的机理。

By applying the optimal tool parameters, the maximum tooth contact pressure is reduced by 45% and the maximum angular position error of the driven gear by 60%, in regard to the spiral bevel gear pair with a pinion manufactured by a cutter of straight-sided prole and of diameter determined by the commonly used methods.

通过应用参数的最佳工具，最大齿接触压力减少了45％，而最高的从动齿轮角位置误差60％，在关于由一个螺旋直齿轮刀具制造了一对锥齿轮双面形象和所常用的方法确定的直径。

In this dissertation, as for some problems in flood forecast andreservoir regulation, the research had been done based on the special research topic dynamiccontrol on limit water level in flood season using theories of fuzzy optimizing theory,maximum entropy theory, entropy-weighted multi-objective decision making method, geneticalgorithm etc. And the research focused on evaporation calculation, fuzzy description ofcatchraent impoundage, fuzzy similarity calibration method, nolinear watershed concentrationmodel and error distribution maximum entropy model and risk computation of dynamiccontrol reservoir water level in flood season when the flood forecast and precipitation forecastare taken into consideration.

本文从洪水预报和汛限水位动态控制两个研究方向着手，以汛限水位动态控制研究专题的试点水库为工程背景，运用模糊优选理论、极大熵理论、熵权多目标决策法、遗传算法等理论，研究了蒸散发计算和流域蓄水容量的模糊描述、洪水预报模型参数的模糊相似校正方法、流域非线性汇流模型、误差分布的极大熵模型以及考虑洪水预报和降雨预报动态控制水库汛限水位的风险计算方法。

The article adopted a new filtering-cloud composing technology used to monitoring drought,analyzed the property of Ts—NDVI characteristic space and the TVDI's indicating drought ability, put forward the TVDI compute model, grade standard, and the impact estimation method. The result indicated: 1 the decade-composed data obtained by the maximum surface temperature principle has better ability than the composed data obtained by the maximum NDVI on monitoring drought; 2 in the Ts-NDVI characteristic space,the dry side and the wet side almost are horizontal lines when the NDVI is on the small side, the temperature difference is about 45℃; 3 the TVDI has inequable level on monitoring drought as its value, the less TVDI indicates without drought occurrence, the bigger TVDI shows the drought certainly happened, the unsure drought conclusion mainly comes from the middle TVDI; 4 the monitored results of Sichuan hot-drought in 2006, obtained by the remote sensing and by the climate index, are basically consistent, the estimating error on the bearing drought crop area and on the drinking trouble population is within 10%.

采用了干旱监测合成滤云新技术，分析了Ts—NDVI特征空间属性和TVDI指数干旱监测能力，提出了四川伏旱TVDI计算模型、分级标准、和影响评估方法，结果表明：1按最大地表温度原则得到的旬合成数据比按最大植被指数原则得到的旬合成数据具有更强的旱情监测能力；2在Ts—NDVI特征空间中当NDVI较小时干湿边几乎同为水平直线，两者相差约45℃；3TVDI指数因其大小不同而对旱情的监测能力也不一样，较小时说明没有干旱发生，较大时则一定有干旱发生，中间段对干旱的监测具有不确定性；42006年四川伏旱遥感监测与气候监测结果基本一致，农作物受旱面积与饮水困难人口数估算误差在10%以内。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。