查询词典 accuracy rate

Simulation results of different test cases proved the effectiveness of this approach and the accuracy and sensitivity of the algorithm have also been verified by the program. The study of optimum sampling rate provides a theoretical basis and pre-experimental basis for the practical engineering applications and products design.

综上所述，本文提出的仿真模型具有较高的实用性，编写的保护算法程序有效并且运行可靠，仿真结果验证了保护算法的正确性，最优采样率的研究为实际工程应用和产品化提供了理论依据和前期实验基础。

Under the R statistical software simulation results show that the polynomial-based kernel of support vector machine for predicting wood species stands the best rate out of wood, and has satisfactory prediction accuracy.

在R统计软件下仿真实验，结果表明基于多项式核函数的支持向量机用于预测林分材种出材率效果最好，且具有令人满意的预测精度。

Compared with the single-bounded questionnaire format, the double-bounded questionnaire format could obtain more information about the respondents' willingness to pay, hence, it reduces the confidence interval range and improves the estimation accuracy of the greatest willingness to pay. At the pilot practice for three continuous years, the percent of banana windstorm insurance pilot size in the total banana planting area was less than 10% in Hainan. Combined with this research result, the author holds that Hainan finance should strength the subsidy to banana windstorm insurance on the basis of 30% subsidy in two continuous years of 2007 and 2008, and the subsidy percentage should try to achieve 40%. At the same time, the premium rate should not be too low, 18% is suitable.

与单边界问卷格式相比，双边界问卷格式能够获得被调查者支付意愿的更多信息，从而缩小了估计的置信区间，提高了最大支付意愿的估计精度；在连续3年的试点实践中，海南香蕉风灾保险试点规模占其香蕉种植面积不足10%，结合本研究结果，笔者认为海南省财政应在2007、2008连续两年30%的财政补贴基础上进一步加大对香蕉风灾保险业的补贴力度，力争补贴比例达到40%左右，同时费率也不宜过低，宜保持在18%左右。

With the continuous development of the high compacted molding methods and technique, the quality of casting especially their surface quality and size accuracy have been increased significantly, and the rate of waste product was reduced greatly. The degree of ramming of sand mold was improved highly, but the sizes of cavity were changed by the springback of sand mold at the same time, and then it causes the variety of the sizes of casting.

随着高紧实度造型技术和方法的不断发展，铸件的质量尤其是表面质量和尺寸有了很大的提高，大大降低了废品率，但是在砂型紧实度提高的同时，由此产生的型砂回弹改变了行腔尺寸，引起铸件尺寸的变化，成了制约铸件精度和质量的重要因素。

It is indicated that only a single resonance peak appears in the amplitude versus frequency curve without spurious resonance peaks during the procedure. The direct actuation enables to improve the tuning accuracy, weaken the possible sample damage by the tip, and enhance the atomic force microscope bandwidth and imaging rate.

研究表明，采用压电探针的直接激振方法在探针振动的幅频曲线中仅有单一谐振峰，可以避免在压电陶瓷管激振方法下由液体振动造成的寄生谐振峰，因此使用压电探针不仅提高了探针振动频率的控制精度，而且减小了针尖对样品的损坏，还提高了仪器的带宽和成像速度。

The relationships between strain and stress of several kinds of high strength fibers, such as Kevlar, Twaron and Dyneema were obtained, and the dependence of mechanical properties of fibers on the strain rate was gotten and explained from the microstructures and deformation mechanism of fibers. Then, the damage and failures of plates with the reinforcement of fibers under high velocity impacting were studied experimentally. Based on experimental results, a set of equations was presented to depicted the deceleration of penetrator. The dynamic response of fiber cluster and sandwich were simulated successfully with a new algorithm and code, which was developped by our group. The coupling effect of stress wave and thermal conduction could be considered with acceptable accuracy and CPU time.

其中，获得了以芳纶纤维为代表的7种纤维的动态应力应变关系，从材料微观机制解释了纤维束的应变率相关特征；得到了板材在高速冲击下的能量吸收机理，以及影响能量吸收机制转变的主要因素；发展了一种新型的原位光学测试技术，以之可以测量试件在冲击加载下的变形场及其演化，该技术除了在本项目应用外，还可以对剪切带的萌生演化、孔洞动态扩张规律进行较好的观察，以弥补相关研究中实验证据的缺乏；发展了含热传导的冲击动力学有限元程序，在侵彻、绝热剪切带、脉冲激光诱导结构破坏等问题的分析中得到了较好的应用。

Along with the research and rapid development of micro Electro-Mechanical sysmtes in recent years, the trend of development of the flow rate sensor in the traditional industry and fluid mechanics research is high integrantion level, microminiaturization, high degree of accuracy and high reliability.

近年来，随着对微电子机械系统的深入研究和取得的进展，传统的工业和流体力学研究的流量传感器向高集成度，微型化，高精度，高可靠性方向发展，同时生命科学的发展大大促进了用于微流体，生物学、医学、卫生、食物等学科研究新型微型流量传感器的研究开发，微型流量传感器已成为MEMS的重要研究方向。

Methods refering to the document announced by the international hematology standardization committee icsh in 1984, the accuracy, the intra and inter-assay precisions and the height mutually dyeing rate of the analyzers were compared by determinaiton of wbc, rbc, hb, hct, plt of the standard whole blood samples from 20 subjects.

根据1984年国际血液学标准化委员会icsh公布的关于自动血细胞计数仪评价的文件，用标准全血质控液以wbc、rbc、hb、hct、plt 5个测试项目评价sysmex t-2000i、sysmex kx–21n和beckman coulter act diff2 三型血细胞分析仪的批内精密度、批间精密度、高低互染率等指标，然后比较20份患者新鲜全血样本在三型仪器上的测定数据。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。