例句與造句

1. In the first place , start with theoretic model of distributed fbg strain - sensing network , sensing principle of fiber bragg grating is analyzed and sensing model created . on the basis of analyzing advantages and disadvantages of several familiar multiplexing and demodulation techniques , a mixture multiplexing method that combines optical frequency domain reflectometry ( ofdr ) and wavelength division multiplexing ( wdm ) is proposed to address fbg sensing array . at the same time , tunable narrow - band light source , which is composed of wide - band light source and tunable optical filter , is adopted to demodulate multiplex signals
   首先，論文從分布式光纖光柵應變傳感網(wǎng)絡的理論模型入手，分析了光纖布拉格光柵的傳感機理，建立光纖光柵應變傳感模型；在分析比較了常見幾種復用技術和信號解調(diào)技術的優(yōu)缺點基礎上，提出應用光頻域反射復用技術和波分復用技術相結合的混合復用方法來解決光纖光柵應變傳感網(wǎng)絡的尋址問題，采用由寬帶光源和可調(diào)諧光濾波器組成的可調(diào)諧窄帶光源來解調(diào)復用信號，通過理論分析和實驗研究證實了系統(tǒng)方案的可行性。
2. We use time domain reflectometry ( tdr ) to simultaneously estimate volumetric soil water content , soil solution electrical conductivity , and soil nitrate concentrations in combination with porous ceramic cup solution samplers to follow no3 - n transport in soil exposed to different irrigation , fertilizer quota and temperature . the experiment was conducted with nondestructive soil colums
   本研究中以原狀土為研究對象，利用時域反射技術隨時測定土壤含水量和電導率的特點結合多孔陶瓷杯抽濾技術，研究在不同灌水、施肥和溫度下硝態(tài)氮的變化。
3. The fully distributed optical fiber sensor system is studied by theory and emulational methods . the contents are organized as follows : chapter 1 . an over view of the research background is introduced , and the advantages of the fully distributed optical fiber sensor on base of the ofdr ( optical frequency domain backscattering reflectometry ) are presented
   本文從理論分析和數(shù)據(jù)仿真兩個方面研究了全分布式光纖傳感器系統(tǒng)，主要內(nèi)容安排如下：第一章，介紹了本文的研究背景和全分布式光纖傳感器的當前進展，指出了基于光頻域散射的全分布式光纖傳感器的優(yōu)點。
4. It's difficult to find reflectometry in a sentence. 用reflectometry造句挺難的
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