ultimate vacuum 中文意思是什麼
ultimate vacuum
解釋
極度真空-
The working principle of liquid helium cryocondensation pump is strong absorptive force between 4. 2k cryogenic surface and gas molecules. the pump has great advantage in large instant pumping speed under high gas load, large working pressure range, high & neat ultimate vacuum
利用4 . 2k低溫面對氣體的物理吸附機制實現高氣載下瞬時大抽速的液氦低溫冷凝泵，具有工作壓強范圍寬、能獲得清潔真空環境的特點。 -
Vacuum technology - positive - displacement vacuum pumps - measurement of ultimate pressure
真空技術.容積式真空泵.極限壓力的測定 -
Positive - displacement vacuum pumps - measurement of performance characteristics - part 2 : measurement of ultimate pressure
容積真空泵.性能特性的測定.第2部分:極限壓力的測定 -
Liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc. it ' s more excellent than any other vacuum pump. it can meet the vacuum requirement of nbi and can improve the transportation efficiency. the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht - 7 device of asipp was introduced in the thesis
液氦低溫冷凝泵是利用低溫面對氣體有強吸附能力的原理，實現抽氣的真空獲得設備，它具有抽速大、工作壓強范圍寬、極限真空度高等一系列優點，是普通真空設備無法比擬的，作為中性束注入系統的主抽泵，它能滿足中性束注入系統對大抽速的要求，提高中性束的傳輸效率。 -
Secondly, it is consistent with the hope that the ultimate vacuum energy might actually be zero, and that we simply haven t relaxed all the way to the vacuum as yet
此外，把真空能量重新假設為零亦符合不少科學家的祈望，除非事非必要，我們仍不想放棄對真空的傳統理解。
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