precooling 中文意思是什麼

precooling 解釋
預冷法
  1. Preliminary study on air - forced precooling of eggplant, tomato and sweet pepper

    青椒差壓預冷方法的研究
  2. The current method for precooling is " draining cooling "

    目前，我國在氫氧發動機上一直採用排放預冷的方式。
  3. Comparing to the direct drain cool - down process used in china, the natural precooling cycle, which may save the propellant of the precooling, simplify the prestart program, delay the ignition of the rocket and be more safe in the process of precooling as well is employed in this paper

    國外在該項領域的技術已經在實際火箭發射場得以應用，相比之下，我國仍採用排放式的預冷方法。因此，需要研究低溫液體火箭發動機循環預冷的方法，盡快實現趕超發達國家的目標。
  4. Meanwhile, theoretical analyzing methods concerning with precooling are discussed. the paper also introduces a new analyzing method based on the comparison with the natural circulation boiler

    同時，也對自然循環預冷法的理論研究方法進行了討論，並提出了參照自然循環鍋爐理論的對比分析方法。
  5. This method not only wastes cryogenic fuel, but also causes safety problem. it is necessary to develop new type of precooling method, so the natural circulation cooling system is introduced

    因此，為節約推進劑，提高發射的可靠性，簡化地面系統以及發射前的操作程序等，需要立即開展新型的自然循環預冷法的研究。
  6. The paper firstly reviews the history and developments of the research and application on kinds of precooling methods recently adopted. then, the paper lays emphasis on the experimental investigation of natural circulation precooling

    本文首先介紹了低溫推進劑火箭發動機的各種預冷方法的研究和應用的歷史和現狀，然後重點對自然循環預冷法進行了實驗研究。
  7. Theoretical study on the natural circulation precooling involves complicated two - phase fluid flow and heat transfer. the paper discusses several typical analyzing methods concerned with precooling, and also introduces a new analyzing method based on the comparison with the natural circulation boiler

    自然循環預冷法的理論分析涉及到單相、兩相流的流動和傳熱問題，對此不少文獻都有所論述，本文對其中一些具有代表性的方法進行了討論。
  8. At last, all the mathematic models described above are simulated on pc. end - end key words : lng carrier ; pressure control system ; precooling system ; cargo system ; finite element ; simulation

    最後，文章對壓力控制系統、預冷系統和貨物管網的貨物裝卸操作過程進行了計算機模擬計算。
  9. Discussion of precooling operation of propylene jar at low temperature

    對低溫丙烯貯罐預冷操作的探討
  10. Study and realization on precooling unit added to truck - mounted air separation plant

    車載制氧機加裝預冷裝置的研究與實現
  11. Application and design of forced - air precooling equipment and techology for fruits and vegetables

    果蔬差壓預冷設備及預冷技術研究
  12. In order to convey the cryogenic fluids safely and efficiently in a feeding and transferring system of rocket engine, the precooling of the cryogenic pump system is of necessity and much importance

    對于低溫推進劑火箭來說，在發射前對其發動機及增壓輸送系統進行預冷是一項必不可少的重要工作。
  13. Built of fresh six, three processing workshops, the staff of more than 200 people, is set to become the acquisition of raw materials, product processing, precooling goods, and export trade as one of the well - known enterprises

    建有保鮮庫6座、加工車間3座、員工200餘人，現以成為集原料收購、產品加工、貨物預冷、以及出口貿易為一體的知名企業。
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