查询词典 accuracy grade

Firstly,the sampling design has great impact on the accuracy of remote sensing classification.There exists great randomicity on the result of points and cluster sample verification on the different Sampling design.On the same sampling design,the stability of point sample verification is higher than that of Cluster sample verification.Secondly,the average accuracy of different sampling designs of multi-point and multi-cluster sample verification can reflect the accuracy characteristic.During the course of point sample verification,stratified sampling's error is lower than others'.During the course of cluster sample verification,systematic sampling and stratified sampling's accuracy are prior to simple random sampling's.

研究结果表明：（1）抽样方式对遥感分类精度评价结果的影响是客观存在的，不同抽样方式下的点样本和群样本检验结果都存在一定的随机性，但同一种抽样方式下，点样本检验精度评估结果的波动幅度小于群样本检验，稳定性比群样本检验要好；（2）不同抽样方式下的多次点样本和群样本检验的平均精度检验结果基本上都能够反映分类图像的精度特征，其中，点样本检验中，分层随机抽样点样本检验效果较好；群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。

To get the observer's Lat.and Long.just by pressing a button without the sea horizon to turn to,we should know clearly the relationship between the accuracy of zenith distance observed and the accuracy of a position fixed,the causes of the errors of zenith distance observed,what accuracy of zenith distance observed could be obtained and what accuracy standard should be used.

要在无水天线测天时一按按钮就可定出较精确的船位经纬度，必须弄清天体顶距测量精度对定位精度的影响，弄清顶距测量误差产生的原因，可达到的精度及选用适当的精度标准。

Moreover, the accuracy analysis for different measurements and parameters(such as time measure error, azimuth measure error, buoys error, baseline length and sound velocity fluctuation) are given respectively. To make the best use of the observation datas, the weighted least square localization algorithm is used to improve the accuracy in bistatic sonar. The simulation results show that the positioning accuracy of this algorithm is higher than the other four algorithms, with which the positioning accuracy in stations areas and side areas can be improved effectively.

同时，通过对系统各个因素，如系统的各观测量的测量误差、站址误差、基线长度、声速波动等参数对算法性能的影响，得出了各方法定位误差的分布规律；为了充分利用双基地声纳系统的观测数据，提高系统的定位精度，采用加权最小二乘方法对系统的数据进行优化处理，仿真结果表明该方法定位精度明显高于基本方法的定位精度，能有效的改善发射站和接受站侧边区的定位精度，且定位性能受站址测量误差的影响较小。

However, such calculation accuracy cannot satisfy the demand of production. The accuracy of volume calculation may be improved by the three-dimensional orebody model; while the accuracy of grade assessment can be improved by estimation for random location of orebody with space interpolation.

以三维矿体模型为基础计算矿体体积能够提高体积计算精度，以空间插值技术对矿体任意空间位置的品位进行估值，有助于提高品位估值的精度。

The university library strategic plan evaluation designed by this paper is divided into 2 first grade indexes, 9 second grade indexes, and 33 third grade indexes. The two scales are the plan's design and content. The second grade indexes are clarity, attractability, democracy overall, feasibility, etc. This scale is the third class, which contains 33 evaluation questions, such as logical structure, document layout, librarian participation, strategic emphasis and strategic target, etc.

本研究最终构建的高校图书馆战略规划方案评价指标体系，主要由2个一级指标、9个二级指标、33个三级指标组成，分别是设计、内容2个维度，清晰性、吸引性、民主性、完整性、协调性、可行性、发展性、风险性、灵活性9个二级原则指标，以及逻辑结构、版面编排、馆员参与、战略重点、战略目标、内外环境等33个题项。

Cultivated land quality was assessed by BP neural network in Dazu County, Chongqing. The assessment results showed that paddy lands were mainly of the second-grade and third-grade, while dry lands were mainly of the first-grade and second-grade. It illustrated the high natural quality of the cultivated land, but the natural quality only reflected land natural characteristics. Therefore, influence coefficient was used to modify natural quality index based on the investigation to households. At the same time, by using the household income as the value of cultivated land, the impact of natural quality and investment structure on the value were further discussed. The results showed that trinomial equation and binomial equation were fitted to reflect the relationship between natural quality and income.

该文采用BP神经网络模型对重庆市大足县耕地自然质量进行评价，发现研究区水田自然质量等级以二等地和三等地为主，旱地以一等地和二等地为主，耕地自然质量总体偏高；但耕地自然质量仅仅是耕地自然属性的反映，因此在基于对研究区农户行为调查的基础上，采用"影响力系数"对耕地自然质量进行修正，并将农户收益作为耕地质量货币化价值的表现，进一步讨论了耕地自然质量和农户投资结构对这种价值的影响以反映对耕地质量的影响。

Because of the eleven-plus the physical education in class was taken into physicaltraining in grade. Many courses were not taught to the students. The situational interest does not decline with age in school just not like the westward. In the three grades the highest situational interest is grade three, next is grade one and grade two.

受到初中体育升学考试的影响，该中学初三的体育课成了体育中考项目训练课，导致体育课程要求的各种球类项目并没有得到正常开展，本研究初中生的情景兴趣并没有随着年龄的增长而减小，在四种任务中初三年级情景兴趣得分最高，其次是初一年级，初二年级情景兴趣得分最低。

Accoring to analyzing existing division menthods of tunnel health grade andtunnel health grades, the fourth-class division method is adopted for division ofhighway tunnel health grade. And highway tunnel health grade is founded based onfourth-class judging grade of special examination for highway tunnel in our couctry.

2在分析现有的隧道健康等级划分方法和国内外隧道健康等级的基础上，采用四级划分法划分公路隧道健康等级，并以我国公路隧道专项检查结果的四级判定等级为基础建立了公路隧道健康等级。

Results: these 30 old patients with bedsore got（16.97±3.24） grade averaged. there were 3 patients (10%) got 13 grade, 14 (46.7%) got 14~18 grade, 5 (16.7%) got 19~23 grade. most of them had the innutrition, hypoproteinemia, decrease of serum calcium, change of muscular tension and gatism in different degree. all of them had no self-care ability and had to lie down and take transfusion, 10 of them had to be bound their extremity. there was close correlation between the factors happened to the patients and the incidence of bedsore.

结果：30例老年压疮病人诺顿评分平均（16.97±3.24）分，其中，3人（10%）≤13分，有很高风险，14人(46.7%)14~18分，有较高风险，5人(16.7%)19~23分，有中等风险；30例老年病人不同程度存在中重度营养不良、低蛋白血症、血清钙降低、肌张力改变、大小便失禁等情况；30例病人均长期卧床，丧失生活自理能力，住院后接受输液治疗，其中10例因躁动需要约束四肢等，这些因素均与压疮的发生相关。

The incidence rates of smoking and drinking were9.7%and12.3%for the students in grade seven and the rates were41.0%and62.9%for the students in grade eleven respectively.The incidence rate of depression,anxiety and irascibility in grade seven and grade elevenwere63.7%and91.7%respectively.

结果 杭州市城区中学生不健康行为较普遍，初一学生吸烟、饮酒率分别为9.7%，12.3%，高二学生吸烟、饮酒率分别为41.0%，62.9%；抑郁、紧张、脾气暴躁在初一学生中出现的比例为63.7%，高二学生为91.7%。

Please release that pleasant peasant tea ser who brings us plenty of pleasure.

请释放那个带给我们巨大快乐的友好的农民逗趣者。

I feel strongly that I can make it.

我坚信我一定。。。