查询词典 accuracy

The effects of standard deviation of random variables and system size on computational accuracy are investigated by several numerical examples and two points estimate method are recommended when computational accuracy and execution time are considered in a comprehensive way.

数值仿真分析了随机变量标准差和系统规模对点估计法计算精度的影响，并指出在综合考虑计算精度和计算时间的情况下，2点估计法的结果令人满意。

Author established the model of calculating coordination accuracy by analyzing coordination accuracy through system error and random error.

从系统误差和随机误差两方面分析影响协调准确度的因素，建立协调准确度计算模型。

Astrometry with new technologies created and is dedicated to the Space Telescope astrometric space orbit around the Earth observation and research on the scientific .1989 8 8, the European Space Agency launch astrometric Satellite Iba Valley satellite, which contains a 29 cm diameter reflecting telescope, four ground stations for data reception and analysis with the aim of space-based observations compiled by 120,000 to contain space for satellite measurement of star form, the location accuracy of ± 0002, parallax measurement accuracy ± 0002, on their own a year 0002, CDCDCD preliminary estimate of the above three data are now actual for the 0004,0003 and 0005; CDCDCD190 year in April the U.S. launch of the Hubble Space Telescope, containing 24 m diameter Wang C far mirror can work 15-20 years, 17-18 so you can measure the parallax of stars, are hundreds of thousands of stars of the measurement results.

伴随天体测量新技术而产生，是专门用于天体测量的空间望远镜在围绕地球的空间轨道上进行观测研究的科学。1989年8月8日，欧洲空间局发射天体测量卫星伊巴谷号卫星，它载有口径29厘米反射望远镜，4个地面观测站进行资料接收与分析，目的是要通过空间观测编出含星12万颗的空间测量星表，位置精度为±0002，测量视差的精度为±0002，自行为每年0002，CDCDCD现在初步估计上述三个数据实际为0004、0003和0005；CDCDCD190年4月美国发射哈勃空间望远镜，载有口径24米的望C远镜，可工作15—20年，可以测量出17—18等星的视差，得到几十万颗星的测量结果。

Based on the regular Fourier matrix, a new set of accuracy factors is proposed for the nonuniform fast Fourier transform algorithm to improve the accuracy of transformed data.

本论文研究非均匀的傅利叶快速转换演算法中准确因子对运算结果准确性的改善，并提出非均匀哈特利快速转换的演算法。

An detecting system for feeding device for drills accuracy was established according the northern production condition in our country, wheat、 soybean and corn were collected as the trial samples, experiment project was established according to combination and put into practice, each combination experiment was repeated three times, the detecting accuracy was increased effectively.

按照因子试验设计制定试验方案并组织实施，采集了小麦、玉米、大豆条播试验的视觉检测样本，每个试验选择三个重复，样本容量满足排种器30转的要求。

Article 1 These Measures are formulated in accordance with the "Meteorology Law of the People's Republic of China" with a view to protecting meteorological sounding environments and facilities, ensuring the smooth carry-out of the meteorological sounding work, guaranteeing the representability, accuracy and comparability of the meteorological sounding information obtained, improving the capacities of monitoring climate changes, the accuracy of meteorological forecast and the level of meteorological services, so as to provide reliable safeguard for national economy and people's lives.

第一条 为了保护气象探测环境和设施，保证气象探测工作的顺利进行，确保获取的气象探测信息具有代表性、准确性、比较性，提高气候变化的监测能力、气象预报准确率和气象服务水平，为国民经济和人民生活提供可靠保障，根据《中华人民共和国气象法》，制定本办法。

So it can be avoided that the computation accuracy is lowered and the calculation result is hard to be convergent for the odd state of transformation matrix.The computation accuracy of wavelet Ritz method and wavelet Galerkin method has been improved so the special'microscopic'property could be fully expressed. An effective method is offered also to solve the problem of high stress gradient and some other odd state problems in engineering.

从而避免了由于转换矩阵奇异而造成精度下降且计算结果不易收敛的问题，提升了小波Ritz法和小波Galerkin法的求解精度，使小波分析的"显微"特性得以充分发挥，并为应力大梯度问题和工程奇异问题的有效求解提供了强有力的计算手段。

The optimal reconstruction windows of patients with stable HR(≤75 bpm and≥91 bpm) were concentrated in 71%,ranged from 65%-80%, and in 41%,ranged from 32%—50%,respectively.The prospectively ECG-gated DSCT coronary angiography can be used in patients with stable HR(≤75 bpm and≥91 bpm) in abstract.②To explore the clinical application of prospectively ECG-gated transverse DSCT coronary angiography.Methods Two hundreds patients[Body mass index:23-25 kg/m~2,122 patients(average HR≤75 bpm),78 patients(average HR≥91 bpm)]with suspected or known coronary artery disease underwent prospectively ECG-gated transverse DSCT coronary angiography,among them,30 patients underwent selectively coronary angiography,grouping them into 2 groups according to the average HR of scanning.Group A(17 cases,HR≤75 bpm),group B(13 cases, HR≥91 bpm),the DSCTA results were compared with SCAG.Then,calculate the accuracy of patients in each group and evaluate the agreement of accuracy between DSCTCA and SCAG by Kappa statistics.

方法回顾性分析200例行适应性前瞻性心电门控双源CT冠状动脉血管成像的患者(排除扫描过程中，屏气配合差，出现心律不齐的患者及行支架置入或搭桥术后复查的患者)，包括屏气时平均HR≤75 bpm患者122例，HR≥91 bpm患者78例；其中30例同期行选择性冠状动脉血管造影，按屏气时HR将其分为2组，A组17例：HR≤75 bpm，B组13例：HR≥91 bpm，分别与金标准SCAG对照，计算2组患者的阳性诊断准确率，应用SPSS 13.0统计学软件，利用Kappa检验比较每组患者的2种诊断方法诊断结果的一致性，利用两样本率x~2检验，比较2个心率组间的诊断准确率有无明显统计学差异，并计算此30例患者的平均有效辐射剂量。

The conclusion is provided as a theoretical basis for practical application. Furthermore, from both sites of experiment and theory, the kinematic accuracy and laser scanning accuracy of the LPS-600A machine are studied.

从理论和实验两方面研究了机械运动精度及激光束扫描精度的影响因素，利用激光双频干涉仪对LPS-600A的机械运动精度进行了测试。

Results: The location and qualitative accuracy of MSCT was 100%,97% respectively. The accuracy for TNM preoperative staging was 69.7%, 78.8%, 100%. The sensitivity and specificity of invading tunica serosa was 77.8%, 33.3%. The sensitivity and specificity of lymph node metastasis was 80.9%, 75%.

结果：MSCT对引起梗阻的肿瘤定位、定性准确率分别为100%、97%，对其TNM分期的准确率为69.7%、78.8%、100%，对其浆膜外侵犯的敏感性和特异性分别为77.8%、33.3%，对淋巴结转移的敏感性和特异性分别为80.9%、75%。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。