first pip 中文意思是什麼
first pip
解釋
初顯反射脈沖-
The first section is about the way and principle of the h ( k ) f operation valve ; the second section is about controlled way of the air gate. the third section is about the controlled and transmission of the pressure signals in train pip, auxiliary pressure air tank and bake tank ; the fourth section is about the auto test way and principle of the three thoroughfare valve leakage
第一部分是h （ k ） 、 f操作閥的控制方法和原理；第二部分是風門的控制方法與原理；第三部分是列車管、副風缸、制動風缸壓力信號的採集與傳輸控制；第四部分是三通閥漏泄自動檢測方法與原理。 -
First, we introduce the development of this research field, and review the relative theories and basis on ultrasonic guided waves and development of transducer. subsequently, we depict in detail the prosess of the development of guided - waves transducer, based on the particularity of object to be detected - pip eline and some relative manufacture techniques of transducer. and we have made 24 guided - waves transducers and a mechanical device with which we can mount transducers on a pipe
首先，本文對國內外本課題研究領域的進展作了綜述，並簡要介紹了與超聲導波技術和探頭研製相關的理論基礎；其次，根據檢測對象? ?管道的特殊性，結合常規探頭的製造技術，詳細介紹了超聲導波探頭的研製過程，製作了24個超聲導波探頭和一個用於把探頭在管道上固定的機械裝置，並且對探頭的一些性能參數進行了數值模擬。 -
The first part discusses the base and necessity of the paper, review of the technique home and abroad, market demand analysis, available conditions and main work finished ; the second part is the core of this paper and discusses the detail of how to make the micro optic life explorer ; the third part introduces the optic - electric imaging theory ; the fifth part discusses the process and display of video image, circuit of video information process, pip video display technique and lcd display technique ; the sixth part discusses the relative content about wireless spread spectrum theory, a necessary theoretical supplement of lift exploring system ; the last part is the conclusions of the paper, summarizes experiences gotten during the research of lift explorer, gives some advices on how to perfect the system and the market prospect of lift explorers
第一部分論述了選題依據和必要性，國內外現狀和技術發展趨勢，市場需求分析，現有基礎條件和本人所做的主要工作等；第二、四部分是微型光學探生儀的詳細研製過程，從系統設計方案、設計思路到系統整機集成進行了逐一分析介紹，是本文的核心內容。第三部分是對主探頭的光電成像理論進行介紹。第五個部份討論了視頻圖像處理與顯示，介紹了ccd視頻信號處理電路， pip視頻顯示技術和液晶屏顯示技術。
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