查询词典 reflectometry

The development of tomographic imaging technique-optical coherence tomography is based on the low interference reflectometry.

层析成像技术光学相干层析术是基于光学低相干反射测量发展而来的。

Acoustic reflectometry is a technique by which the dimensionsof a cavity can be estimated in the form of an area–distanceprofile.

用声学反射计的激素检查可以以面积－深度剖面的形式，评估一个空腔的三维特征。

Time domain reflectometry is widely used in determining water content for general agricultural soils.

试验通过往土壤中加入电介质溶液，以及在不同粘粒含量土壤上用时域反射仪测定土壤含水量，研究结果表明：在较低含水量情况下砂土 1 5cm3cm- 3，砂质壤土。

Photosynthesis, Chl fluorescence, Gas Exchange, Root research solutions, Soil Moisture Content, Time Domain Reflectometry

56光合作用，叶绿素荧光，气体交换，根系研究解决方案，土壤水分，时域反射仪

Frequency Domain Reflectometry is an effective instrument of measuring soil volumetric water content, but it need a good calibration.

为了获得精确的土壤含水量测定数据，在室内和田间分别进行了频率域反射仪测定土壤含水量的校正，并在田间运用土钻取样和烘干法对模型参数进行了验证。

The soil moisture is measured in the field by time domain reflectometry, neutron probe and soil sampling, The results showed that the measured values are different.

应用时域反射仪、中子仪和上钻法测定了农田土壤水分，并对农田土层含水量和主体贮水量的测定结果进行了比较。

A Brillouin optical-fiber time domain reflectometry system for distributed sensing measurement was reported.

报道了新型的分布式传感测量布里渊光时域反射系统。

The principles of time domain reflectometry and the properties of electromagnetic wave propagation in coaxial cable are described for the applications of TDR technology to slope monitoring.

1引言 滑坡运动情况的监测是交通、矿山、建筑及水利等工程的一项重要课题，通过监测可以掌握其活动情况、破坏机理及对工程的影响，预测可能发生的破坏，从而为防灾减灾提供依据。

The distributed optical fiber sensors based on optical time domain reflectometry are the easiest ones to become products in all these distributed optical fiber sensing technology.

而在众多分布式光纤传感技术中，基于光时域反射计的分布式光纤传感器是最容易实现工程化、产品化的技术。

As the significant importance of source location to power cable,widely used location methods including time domain reflectometry and improved techniques,are presented on the basis of transmission line model.

根据检测原理及选用传感器的不同，目前电缆局部放电的检测方法大致有声发射法、电容耦合法、电感耦合法、超高频法和方向耦合法等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。