Objective To investigate the accuracy and applied value of measurement of pulmonary flow velocity with phase-contrast MRI (PC-MRI).
目的探讨相位对比法MR I (PC -MR I)测量肺动脉血流的准确性以及临床应用价值。
An analysis is made in the paper of the factors affecting the accuracy of the ZKL intelligent orifice plate flowmeter in flow measurement.
本文主要分析了ZKL智能孔板流量计测量流量时影响测量精度的主要因素。
From the test, it is shown that effect of surge on water-holdup can be weakened by increasing the flow velocity of oil and water, which assures the accuracy of water-holdup measurement.
从实验上证明提高油水的流速，可以减少滑脱现象对持水率的影响，保证了含水率的准确测量。
Field test proved that the real time calibration method significantly improved the measurement accuracy of grain flow.
田间试验证明，通过实时标定，测产系统具备以较高精度进行谷物流量测量的能力。
The measurement accuracy of the vehicle flow, vehicle speed and time occupancy are exceed 90%.
对车流量、车速、时间占有率这三大重要交通量进行实时检测，准确率达90%以上。
By replacing the analog flow measurement and totalizing instrument with LJ21E programmable flow calculator, the system accuracy will be better than 0. 8%.
以LJ21E可编程流量演算仪取代模拟式流量测量和积算仪表，可使系统精度优于0.8%。
Experiment and analysis of movable weir for flow measurement indicate that the modular limit of movable weir is relatively high. And the accuracy of theoretical discharge calculated is satisfied.
通过对活动堰测流进行实验研究和理论分析，认为活动堰过流的淹没度限值高，理论计算流量精度满足测流要求。
At the point of increasing the measurement accuracy of the meter, the precision of the system is analyzed. The emphasis is put on how to improve the accuracy of the turbine flow sensor.
从提高油耗仪测量精度的角度出发，对系统测量精度进行了分析，并重点介绍了提高涡轮流量传感器测量精度的措施。
Directing against the actual situation of steam flow rate measurement, methods and measures for enhancing the accuracy in steam flow rate measurement have been put forward.
简要介绍了蒸汽流量测量的方法，分析了引起测量误差较大的原因。
Several simple methods for micro-flow rate measurements are presented and the detection limits are estimated. The factors affecting the measurement accuracy are discussed.
提出了几种简单的微流量测量方法，估算了其检测限，讨论了影响测量精度的一些因素。
From the practical measurement and application, it is shown that the measurement result of flow velocity is reliable and the accuracy is 0.5 % FS.
对流速传感器的标定测试方法进行了探讨和试验验证，实际测量和使用表明：流速测量结果准确可靠，准确度达0.5% FS。
As a result, reliable flow rate measurement with a high accuracy can be achieved.
因此，能够获得高准确度的可靠流率测定。
CPLD with high performance is applied to take place of single device, which realizes high accuracy measurement of liquor flow.
采用高性能的CPLD代替分立元件，实现了液体流量的高精度测量。
Flowmeter can achieve on the measurement of flow, but the accuracy of flowmeter should be measured and calibrated by flow measure device.
流量仪表可以实现对流量的计量，而流量仪表的准确性是通过流量计检定装置来衡量的。
By adopting dynamic correction factor, adjusting coal flow factor and changing the kind of coal, the accuracy of measurement with SWR engineering DensFlow was improved.
介绍了梅山高炉喷吹煤粉的计量控制原理，采用动态修正因子技术，通过调节煤流因子和改变喷吹煤种，解决了喷吹计量中煤流计计量不准的问题。
Piston-cylinder is the fuel measurement unit of the injection flow meter and plays a crucial role in the system measurement accuracy.
活塞测量缸作为测量仪的油量测量单元，其结构设计好坏直接影响到系统的测量精度。
Directing against the actual situation of steam flow rate measurement, methods and measures for enhancing the accuracy in steam flow rate measurement have been put forward.
针对现有明渠流量测量方法的不足，提出一种规则断面明渠流量的自动测量方法-“流速-水位法”。
Directing against the actual situation of steam flow rate measurement, methods and measures for enhancing the accuracy in steam flow rate measurement have been put forward.
针对现有明渠流量测量方法的不足，提出一种规则断面明渠流量的自动测量方法-“流速-水位法”。
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