查询词典 precision accuracy

The accuracy and precision of the result accorded with the demand of titrating analysis.

自制微型滴定装置具有较好的操作性能和精密度，符合滴定分析法的要求，可用於测定马来酸氯苯那敏的含量。

The accuracy and precision of the result accorded with the demand of titrating analysis.

结果：微型滴定和常规滴定分别测得马来酸氯苯那敏的含量为98.73％和98.71％，平行测定结果差异无统计学意义。

Methods A series of improved experiments on barium chromate spectrophotometry without heating and the experiments of precision and accuracy,as well as comparison of experimental data between the improved method and the National Standard Method were carried out.

方法采用不加热方法，对铬酸钡分光光度法进行一系列改进实验，并进行了精密度及准确度试验，与国家标准方法的测定结果进行了比较实验。

In the business card printing and membership card making wire thinner, precision higher business card printing and membership card making goods of fineness to compare-and-ink; when business card printing and membership card making on accuracy requirements is not very high in printing or on-site printing, the ink thickness may be appropriate, but also to reduce the cost increase economic efficiency.

在制卡和会员卡制作网线比力粗、精度比力矮的制卡和会员卡制作品时，火不朱的粗度给比力矮；当制卡和会员卡制作差精度请求不是很矮的印品或实不天印品时，火不朱的不粗粗度可不合降矮，这同时也是为了降矮本钱提矮经济收益。

The samples were fused with mixed flux of Li2B4O7 and LiBO2 (67∶33). The homogeneous cobalt glass powder was prepared with CoO3 and used as internal standard to improve the accuracy and precision. LiNO3 was added as oxidizing agent to prevent sulfur from volatilization during fusion.

以Li2B4O7和LiBO2（质量比67∶33）的混合熔剂熔融制样，将测量全铁量的内标Co2O3制备成均匀的Co玻璃粉，大大提高全铁量的测量准确度和精密度；加入LiNO3为氧化剂，解决了硫元素在制样过程中容易挥发的问题。

A number of numerical examples and applications were presented to verify the proposed Bezier-Based Element Method. The engineering cases include: the belt die for diamond synthesize, the main frame of wire-rounded press, the oil cylinder of open die forging press. The numerical results show that the BBEM has some good performances. With few elements, the BBEM can lead to a high accuracy. If using same DOFs, the computing precision of BBEM is remarkable higher than that of the conventional FEM.

通过大量的数值算例来考证所构建的各种类型单元，并应用于人造金刚石年轮模具、钢丝缠绕预应力机架和液压机工作缸等实际问题的结构分析；结果表明：所构建的Bezier耦合单元具有描述较大梯度变化场（如位移场、应力应变场等）的能力，该方法不改变单元的大小和形状，保持单元的自由度数不变，而通过调节中间可动节点的位置改变单元内部的场分布，只需少量单元即可较精确地模拟较大的梯度变化；可为有效求解高梯度问题提供新思路，对实际工程应用具有重要意义。

The roundness tester is a highly precision instrument that is wildly used to measure the rotary work piece in mechanical industry. The aged roundness tester was astricted by the technique condition of that time, so its way of measurement is not at all advanced. Because these roundness testers have been used for a long time, they have a highly failure rate and their accuracy can not be insured.

圆度仪是机械工业中应用最广泛的检测回转体零件圆度误差的高精度仪器，由于老式的圆度仪受当时技术条件的限制，评定方法落后，再加上这些圆度仪的使用时间较长，使用时仪器的故障率一般都较高，测量精度也不能保证。

The principle and the prototype of the fiber optic gyroscope north-finder is described, the deviation influence caused by the basemen tilt on the north angle precision is analyzed particularly, the accelerometer is used to compensate and improve the accuracy of the north-finder.

描述了光纤陀螺寻北仪的工作原理及系统样机组成，详细分析了转台台面倾斜误差对寻北精度的影响，采用加速度计对寻北精度进行补偿提高。

Except for monocyte and basophil,the precision and accuracy of sysmex SF-3000 blood analyzer corresponds to microscope classification.

无异常提示，除单核细胞、嗜碱粒细胞外，中性粒细胞、淋巴细胞及嗜酸粒细胞，用仪器分类的结果相当于目测分类。

Discuss how to make internal and external casings, optimization of experimental parameters, the influence of general coexistence ions and its accuracy and precision.

考察了内外套管的制作方法、实验参数的优化、常见共存离子的影响及该法的准确度与精密度等。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。