With the dredging projects in the Lower Yellow River, the environmental background values of the dredging silt have been determined by means of on site sampling and measurement.
结合黄河下游疏浚工程，通过现场取样和化验，确定了疏浚底泥的环境背景值。
Finally, after each sampling and cleaning sequence the measurements’ zero point ischecked with a water freeness measurement to make sure the next reading isrepeatable.
最后，在完成每次取样和净化顺序后，必须借助于水游离度测量来校正测量仪器的零点，以确保可以进行下一个读数。
Imaginary load method and real load method can be used to test AC sampling measurement device of integrated substation automation.
变电站综合自动化交流采样测量装置可采用虚负荷法和实负荷法检测。
Modifying the pathway discharge for the surface yard drain containing tritium to allow accurate flow rate measurement and representative sampling.
修改项地面排放含氚的路径以使得流量计量准确和采样更具代表性。
This paper expounds the fundamental principles of vector voltage measurement using a sampling method, and deduces the calculating formula.
本文阐述了用取样技术测量矢量电压的基本原理，推导了计算公式。
Important factors include the sampling rate, the zero point of pressure sensor, and the correct calibration of sensor, the revised program and algorism may improve the precision of measurement.
如实时设定的实际采样率和压力传感器零点、对传感器校准与标定的正确性等诸因素均可影响实测数据的精度。
Analog and digital leading industry sampling rate combination allows each channel and multi channel measurement comprehensive analysis.
行业领先的模拟和数字采样率组合允许逐通道全面分析和多通路测量。
Distance between dots should be uniform in the field measurement. Sampling number should be estimated by certain believe level, estimate accuracy and variance coefficient.
田间测墒时，点与点之间的距离要均匀，取样数目可以根据一定的置信水平、估值精度、变异系数做估算。
Use the unique digital reflection sampling technique, and special conveying belt, measurement accuracy of the finished product level.
采用独特的数码反射采样技术，及特殊的输送皮带，测量精度达到成品级。
Ac sampling measurement unit has better accuracy and stability as the online measuring instrument of the electrical parameters of power network.
交流采样测量装置作为电网电测量参数的在线测量仪器，具有较好的准确度和稳定性。
The larger sampling spacing is advantageous to enhance the measurement and data processing efficiencies for near field antenna measurements.
近场天线测量中，采用大的采样间隔，有利于提高测试和数据处理的效率。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
This article presents a digital type electromagnetic radiation measurement system along with its schematic circuit diagram, high speed discrete data sampling method and FFT calculation methods.
本文详细介绍电磁辐射数字化测量系统，给出了电路原理图，离散化数据高速采样方法及FFT计算方法。
Sampling physical parameter is inactive power which has functions of harmonic measurement and protection.
取样物理量为无功功率，具有谐波测量及保护功能。
The errors of harmonic wave analysis and direct sampling in electric parameters measurement are analyzed. The method to minimize errors is presented.
分析了电力参数微机监测中的直接采样计算法与谐波分析法的误差，并提出了减小误差的方法。
The solution for linking twice sampling cycles, enhancing resolution of measurement of rotating speed, isolating and processing keying phase signal, are investigated.
探讨了两次采样循环之间的衔接、提高转速测量分辨率、键相位信号的隔离和预处理等问题的解决方案。
A method of enhancing the precision of linear borderline measurement is proposed, and the highest precision that the limited density data sampling can reach is discussed.
提出了在有限密度采样下提高对直线边界的检测精度的方法以及有限密度数据采样网所能达到的最高精度。
In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine.
介绍了水轮机压力脉动试验时空化系数、测量位置及测点、信号采样频率及采样时间等因素对试验结果的影响。
Under a definite gas state parameter and environment condition, the measurement deviation was correlated with the sampling time and the flow rate.
并得出在采样气体状态参数和环境条件一定时，除尘效率的测定误差主要取决于取样时间及流量。
And it gives the suitable limits of measurement precision respectively, when the sampling frequency of data is 10 times. 8 times and 6 times of the frequency of physical change.
给出了数据采样频率是物理量变化频率10倍、8倍和6倍以上时测量精度的适用范围。
By comparing SG changes of both frozen tissue samples and fresh samples it is to determine the sampling methods' effect on measurement of specific gravity of tissue.
通过比较冷冻后采样和低温直接采样脑组织比重的变化，比较采样方法对于测量结果的影响。
An AC power converter that based on a novel mixed sampling method, the principle of the sampling power measurement, and the power measurement algorithm and its measurement errors are described.
提出了一种混合采样的交流功率转换器，叙述了该种采样功率测量的原理，推导了功率测量的算法和功率测量误差。
Sampling strategy, measurement errors and measured contour form features are all related to the uncertainty analysis for dimension, position and form error estimated.
轮廓的尺寸量、位置量以及形状误差估计值的不确定度与测量误差、被测轮廓的形状特征以及采样策略等有关。
This paper introduces the AC sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition.
本文研究和给出电气量测量交流采样的算法，着重研究三相不平衡及波形畸变工况下无功功率的测量算法。
The factors affecting fine root measurement and its precision mainly included the quality and quantity of tube installation, sampling interval and quantity, and analysis technique of images, etc.
微根管观测精度主要取决于微根管安装的质量和数量、微根管取样间隔期和取样数量、微根管图像分析技术等。
The dial gauges automatic measurement system is composed of an video graphic sampling device, servo mechanism, standard equipments required and softwares based on some algorithms.
由视频图象采集装置、伺服机构、必需的标准仪器及基于一些算法编制的软件组成的“指示表自动检测系统”，在实验中已取得了令人满意的结果。
It may be predicted that the shape of sampling aperture and its orientation over the samples will have an appreciable influence on the granularity measurement.
可以预料，方形采样孔在试样上的取向对测量结果也会有影响。
By establishing the mixed synchronous and asynchronous sampling arithmetic, the power measurement error expressions were deduced.
建立了混合同步采样、非同步采样中两种算法的数学模型，推导了功率测量误差的一般表达式。
Field investigation includes traffic volume, axle loads, types, amount, and severity of pavement distress, measurement of deflection of pavement highway structure, and pavement sampling.
路面调查工作包括交通量调查，轴载调查，路面损坏的类型、数量与严重程度的记录，路面结构的弯沉以及路面取样。
A field investigation of corrosion status of buried pipeline and measurement of the soil parameters were conducted, accompanied with corrosion test piece laying and field sampling.
进行了现场腐蚀状况调研，对现场埋地管道的土壤腐蚀情况就地测量了相关参数，并进行了腐蚀试片埋设和现场取样工作。
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