例句與造句

1. 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)校準的斜楔橫波探頭，對鎢合金殼體部件進行了檢測，并對鎢合金殼體的缺陷定位、典型缺陷及其對應(yīng)的回波特征進行了研究。
2. 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在目標識別上的優(yōu)勢和局限性,提出把常規(guī)防空雷達回波特征和電子支援偵察系統(tǒng)得到的機載輻射源特征聯(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目標識別的需求。
3. It's difficult to find echoing characteristic in a sentence. 用echoing characteristic造句挺難的