查询词典 reflectometry

Soil moisture sensors based on principles of Time Domain Reflectometry,Frequency Domain and a new type of soil moisture sensor based on Standing Wave Ratio developed by China Agricultural University were evaluated with typical sandy loam,loess,peaty sand and leady loam from northern Germany.

该文针对时域反射法、频率分解法型土壤水分传感器和中国农业大学研制的基于驻波率原理的新型土壤水分传感器，在德国北部典型的沙壤土、黄土、含煤沙土及含铅壤土土样上做了试验。

This paper introduced a kind of TDR liquid level monitoring system. This system developed the theory of time domain reflectometry TDR technology.

介绍了一种TDR型液位测量系统，系统推广了TDR技术，通过监测反射信号的变化，实现液面水位的动态监测。

Spectroscopic ellipsometry and spectroscopic reflectometry are important methods to research the physical and optical properties of silicon nitride thin film.

椭偏仪和折射仪是研究氮化硅薄膜物理和光电性能的重要分析方法。

Four-wavelength reflectometry can be used in human infants to estimate MP density.

使用4-波长反射计测量婴儿的黄斑色素密度值。

This paper mainly discussed applications of Lattice LCMXO256 in portable cable test instrument, which is based on the principle of Electric Time Domain Reflectometry.

摘 要：本文介绍了一种使用 Lattice LCMXO256的便携式电缆测试仪，它采用了电时域反射原理。

The ultrasonic time-domain reflectometry technique is most useful for the in situ monitoring of fouling under realistic operating conditions.

超声时域反射法在实际操作条件下在线监测膜污染显示出独特的作用。

According to the case of monitoring landslide, brings up the field method about the use of Time Domain Reflectometry for monitoring landslide.

依据时间域反射测试技术的基本原理，提出了TDR技术在滑坡监测中的野外工作方法。

A wavelet modeling method is proposed to analyze the time domain reflectometry waveforms.

对于混凝土材料来说，其介电常数是随频而变化的，要了解这

The soil volumetric moisture content can be determined by the Time Domain Reflectometry and the Frequency Domain Reflectometry.

其中烘干法简单可靠，但是不可以实现计算机实时监测；射线法测试结果精确，但是成本太高，还有辐射危险；TDR和FDR的是目前比较流行的测试方法，但是不适合实时监测土壤剖面含水率。

We have studied about the development and application of the microwave reflectometry on magnetic confined fusion devices, and introduced the basic principle of microwave reflectometry and characteristics of different kinds of microwave.

微波反射仪作为一种测量等离子体电子密度剖面分布的有效手段已经被广泛地应用于托卡马克等许多磁约束聚变装置中。

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％。