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echo characteristic造句

"echo characteristic"是什么意思  
造句與例句手機(jī)版
  • Defect location , representative defect and its ultrasonic echo characteristics corresponding of tungsten alloy shells had been systematically studied by both vertical wave sensors and transverse wave sensors calibrated after manufacturing
    摘要采用縱波直探頭和自磨制經(jīng)校準(zhǔn)的斜楔橫波探頭,對鎢合金殼體部件進(jìn)行了檢測,并對鎢合金殼體的缺陷定位、典型缺陷及其對應(yīng)的回波特征進(jìn)行了研究。
  • This article , through analysis different system radar ’ s superiority and limitation in target identification , proposes to unite the convention air defense radar ’ s echo characteristic and the electronic support sensory system ’ s aircraft - borne radiant characteristic , structure reasonable recognition system . it can satisfie the airplane target identification demand under the different background
    本文通過分析不同體制雷達(dá)在目標(biāo)識別上的優(yōu)勢和局限性,提出把常規(guī)防空雷達(dá)回波特征和電子支援偵察系統(tǒng)得到的機(jī)載輻射源特征聯(lián)合起來,構(gòu)造合理的識別系統(tǒng)的新思路,以此來滿足不同背景下對飛機(jī)目標(biāo)識別的需求。
  • It's difficult to see echo characteristic in a sentence. 用echo characteristic造句挺難的
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