The accuracy and systematic uncertainty of NH_3-N results comparing the photometry method and quick analyzing method;
快速凯氏定氮仪与纳氏试剂光度法测定NH_3-N的精密度及总不确定度比较
It also points out it is easy and feasible to adopt advanced method more than standard method,and improves the accuracy and precision of supervision,which suits the daily supervision .
为了准确检测出微污染水源水中挥发酚的含量,提出了一种检测低浓度挥发酚的方法,介绍了其实验原理、实验仪器和药剂、水样处理及其测定方法,指出采用改进的方法比采用国标的方法更简单易行,提高了监测的准确度和精密度,适用于大批量生活饮用水的日常监测。
The value of XR1 was affected mainly by the ion composition, total ion concentration (C+A) (cations + anions) and the accuracy of monitoring.
当(C+A)<50μeq/L时,总离子浓度越小,实验的精密度越差,离子浓度的精密度(ai)值越大。
Dicussion on the total precision of 0.05A~2 in coal sample preparation and analysis;
对于制样和分析总精密度0.05A~2的讨论
Discussion on improving the precision of determination in coal quality;
提高煤质检测精密度的方法探讨
Discussion on the precision of sampling for commerical coal in GB475-1996;
GB475-1996中商品煤采样精密度规定的探讨
he handled it with the preciseness of an automaton; note the meticulous precision of his measurements.
这种仪器的精密度很高。
precision of simple random sampling
简单随机抽样精密度
The within-run precision of QCs was characterized by RSD of 4 2% to 6 6%.
批内精密度为 4 2 % - 6 6 % ;
The within-run coefficien of variation(CV) was 2.2%-3.0%,the between-run CV was 4.0%-5.9%.
日内不精密度为2.2%~3.0%,日间不精密度为4.0%~5.9%;
Use electric system for printing unit, either separation or combination, easy for clean up, maintenance and economic efficiency.
精密电动微调结构，提高印刷品质与精密度。
The improvement of precision and accuracy of the determination of gold in copper concentrates
提高铜精矿中金测定的精密度和准确度
accuracy(trueness and precision) of measurement methods and results-part 3:intermediate measures of the precision of a standard measurement method
测量方法和测量结果的精确性(精度和精密度)-第3部分;标准测量方法的精密度的间歇性测量
Precision gear shaping machines-Testing of the accuracy
GB/T9059-1988精密插齿机精度
ultrascan laser densitometer
超精度扫描激光密度计
accurate rapid dense method
高速度高密度精密压铸法
Using precisely graduator of cam,hypo-mood position fixing accurately.
采用精密凸轮分度器，下模定位精确。
EVALUATION OF PRECISE POINT POSITIONING WITH UofC MODEL
基于UofC模型的精密单点定位精度分析
Relations of the Density,Vitality and Morphology of Sperm
精子形态与精子密度、活力关系研究
Design and accuracy for POGO stick with three-axis
一种精密三坐标POGO柱设计与精度研究
The influences of GPS ephemerises accuracy to the precise point positioning
GPS星历精度对精密单点定位的影响
Atmospheric Density Model in the High-precision Autonomous Orbit Determination of Satellites;
卫星高精度自主定轨中大气密度模型
Development and Preliminary Application of High Precision Nuclear Densimeter
高精度核子密度计的研制与初步应用
Effect of the Node Density of Contour on the Accuracy of DEM
等高线节点密度对DEM精度的影响