This method is based on the measurement of the rate of air flow through a given area of fabric by a given pressure difference across the fabric.
这个方法是基于对空气流速的测量：在一块既定面积的面料上，通过面料两边不同的压差来获得。
On the basis of the relevant theory of colorimetry, a test system is designed for object color appearance measurement and its color-difference evaluation using photoelectric integrating method.
本课题在相关色度学理论的基础上，设计了一种采用光电积分型测量方法对物体表面颜色外貌进行测量并对其予以色差评价的检测系统。
We have made a novel instrument for the measurement of work function using contact potential difference method.
利用接触势差法自行设计开发了一种新型的表面功函数测试装置。
A reference method for momentum measurement based on the TOF difference of proton and electron is introduced.
介绍了一种测量电子与质子飞行时间差的动量测量方法。
Accuracy of the CT method was calculated as the average difference between methods. Precision was measured as the standard deviation of the CT measurement.
以这两种方法间的平均差异来计算ct的准确性，以CT测量结果的标准差评估精确度。
It introduces briefly the method of the general gas flow measurement with the temperature and pressure compensation by the flow meter of pressure difference.
简要介绍使用差压式流量传感器进行一般气体流量测量时的温压补偿方法；
After studying on the measurement principle of power system harmonic based on FFT theory, this paper presents a high-accuracy method based on phase difference correcting to measure the harmonic.
研究了基于FFT理论的电力谐波检测原理，提出一种基于相位差校正法的高精度电力谐波检测方法。
The emphasis of the research of the method of time difference measurement is how to suppress noise and interference effectively.
有效地抑制噪声和干扰是研究各种时差测量方法的重点。
In the case of large density difference, there is a velocity separation between different media, making the measurement more difficult, cross-correlation method is still usable.
在密度差别较大时，存在着不同介质间的速度分离，给相关法测量带来困难。
Before the design of digital circuit, measurement method of phase difference is discussed. Two-way zero passage phase detector is chosen as solution finally.
在正式进入数字电路设计之前，先讨论了相位差测量方法，并选定双向过零鉴相作为实现方案。
In a 2-d structure, the calculation results of a hybrid method, which is based on combing ray tracing and finite-difference time-domain (FDTD) method, agree well with the measurement.
在二维情形中，基于结合射线跟踪法和时域有限差分法(FDTD)的室内无线传播混合建模方法对于室内无线传播的预测结果与测量结果吻合较好。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
This paper introduced the flow measuring principle of time-difference method of ultrasonic flow meter and the flow calculating method in flow measurement with velocity instrument.
论述了流速仪法测流及水轮发电机组现场效率试验的原理和计算方法。
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