查询词典 accuracy rate

Results: The sensitive rate and special rate of IFN-γ to diagnose tuberculosis pleural effusions were 90% and 100%, and that of ADA were 80% and 100%, the accuracy of IFN-γ and ADA were 95% and 90%.

结果：IFN-γ对结核性积液诊断的敏感度为90%，特异度为100%，正确率为95%；ADA对结核性胸腔积液诊断的敏感度为80.0%，特异度为100%，正确率为90%。

A flexible buffer was placed between the over-sampler and DPLL.Not only was 10bits data recovery implemented,but also the frequency of sampling clock was reduced to 2.5 times of the data frequency.The phase verification for 10bit parallel data by DPLL increases the accuracy rate of judgment and improves the bit error rate.

通过在过采样电路和数字锁相环之间增加弹性缓冲电路，在实现10bit数据恢复的同时，使采样时钟频率减小为数据频率的2.5倍，DPLL同时对10bit并行的数据进行相位检测判断，提高了判断的正确率，使数据传输的误码率得到改善。

In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.

为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解，根据稳态速率方程组，针对典型的双包层光纤激光器参量，在估计了上能级粒子再发射项和抽运光产生的影响后，采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度，明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值，简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式，并对其相关问题进行了讨论，以915nm，920nm和975nm的抽运光为例，当输出激光为1090nm时，得出975nm抽运光产生的斜率效率最高并可高达约87%。

Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容：一、选取了常见的热膨胀系数大的材料制作封装元件，经过多次一80℃到80℃反复测试，封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷，封装材料具有良好的温敏稳定性及复用性，与光纤相容性较好；二、对光纤光栅进行简单、实用的封装处理，就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验，得出了初步的结论；三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比，从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析，在大量实验数据分析结果的基础上，总结出哪种材料封装效果更好，以及如何有效的减小实验误差。

Accuracy is stated in microns per meter of travel. Scales are specified with an accuracy grade (i.e.±5μm/m).

光栅尺的精确度等级定义如下：在任意1米测量长度区段内测量值和标准值的最大误差。

Carry on structure analysis to the spare parts first, understand its structure characteristics to choose suitable semi-finished product and the semi-finished product manufacturing of the reasonable a craft thus;Then the technique request of spare parts carries on analysis, understanding it each process superficial accuracy grade and the surface rough degree, make it process the fixed position in the process and clip a tight way in assurance inside the scope of economic accuracy, draw up the machine of spare parts to process craft process thus and further, choose each work preface to process equipments and craft material, the assurance slices to pare dosage and craft size, computing the man-hour of each work preface settle sum.

首先对零件进行结构分析，了解其结构特点从而选择合适的毛坯以及合理的毛坯制造工艺；再零件的技术要求进行分析，了解其各加工表面的精度等级以及表面粗糙度，使其在经济精度的范围内确定加工过程中的定位和夹紧方式，从而进一步拟订零件的机械加工工艺过程，选择各工序加工设备以及工艺装备，确定切削用量以及工艺尺寸，计算各工序的工时定额。

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

ALL LM Guide Dust cover type Drive method Retainer Seal Resistance Value MAX QZ Lubricator is available None, bellows Ball Screw None 1.5 Yes LM Guide Accuracy grade Type using standard material Standard grease Standard lubrication method Standard grease nipple Normal grade, high accuracy grade, precision grade Iron-based AFB-LF Grease Lubrication PB107 LM Guide LM block surface treatment LM rail surface trea...

全部 LM导轨部防尘罩形式驱动方式保持器最大密封垫片阻力值对应QZ润滑装置无，软式伸缩护罩滚珠丝杠无 1.2 有 LM导轨部精度等级标准材质规格标准润滑脂标准润滑方式标准加脂油嘴普通级，高级，精密级钢铁系列 AFB-LF 脂润滑 PB107 LM导轨部 LM滑块表面处理 LM轨道表面处理最低使用温度华氏。。。

ALL LM Guide Dust cover type Drive method Retainer Seal Resistance Value MAX QZ Lubricator is available None, bellows Ball Screw None 5 Yes LM Guide Accuracy grade Type using standard material Standard grease Standard lubrication method Standard grease nipple Normal grade, high accuracy grade, precision grade Iron-based AFB-LF Grease Lubrication A-M6F LM Guide LM block surface treatment LM rail surface treatm...

全部 LM导轨部防尘罩形式驱动方式保持器最大密封垫片阻力值对应QZ润滑装置无、防尘盖、风箱式防尘罩滚珠丝杠无 5 有 LM导轨部精度等级标准材质规格标准润滑脂标准润滑方式标准加脂油嘴普通级，高级，精密级钢铁系列 AFB-LF 脂润滑 A-M6F LM导轨部 LM滑块表面处理 LM轨道表面处理最低使用温。。。

ALL LM Guide Dust cover type Drive method Retainer Seal Resistance Value MAX QZ Lubricator is available None, bellows Ball Screw None 3.2 None LM Guide Accuracy grade Type using standard material Standard grease Standard lubrication method Standard grease nipple Normal grade, high accuracy grade, precision grade Iron-based AFB-LF Grease Lubrication PB107 LM Guide LM block surface treatment LM rail surface tre...

全部 LM导轨部防尘罩形式驱动方式保持器最大密封垫片阻力值对应QZ润滑装置无、防尘盖、风箱式防尘罩滚珠丝杠无 3.2 无 LM导轨部精度等级标准材质规格标准润滑脂标准润滑方式标准加脂油嘴普通级，高级，精密级钢铁系列 AFB-LF 脂润滑 PB107 LM导轨部 LM滑块表面处理 LM轨道表面处理最低使用。。。

According to the recovery and purity of PE and PC, 50mg/ml phospholipid solution and 10%MeOH as eluent was preferred.

以产品纯度和收率为依据，确定50mg/ml进样浓度、10%甲醇洗脱液为最佳条件。

Middle English (in sense 2): from Old French salamandre, via Latin from Greek salamandra. Sense 1 dates from the early 17th cent

火蜥蜴 出没在岩洞中的巨大蜥蜴，传说它们具有火焰的力量……巨大蜥蜴的攻击都是带有溅射伤害的火焰远程攻击。。。。