physical decay 中文意思是什麼
physical decay
解釋
自然衰退-
The decay of the external scalar - field of a black hole is studied in the third chapter, i. e., the physical mechanism of the decay of neutral scalar - field in the gravitational collapse, and the physical mechanism of the decay of charged massive scalar - field in the gravitational collapse
第三章主要研究無質量標量場在黑洞外部的衰減，即無質量中性場在引力塌縮中隨時間衰減的物理機制和無質量荷電標量場衰減的物理機制。 -
The hyperbolic conservation laws with relaxation appear in many physical systems such as nonequilibrium gas dynamics, flood flow with friction, magnetohydrodynamics, etc. firstly, the thesis proves that there exists a unique global smooth solution for the cauthy problem to the hyperbolic conservation laws system with relaxation ; secondly, in the large time station, the thesis proves that the global smooth solutions of the hyperbolic conservation laws system with relaxation converge to rarefaction waves solution at a determined l ( p > 2 ) decay rate
帶鬆弛項的雙曲型守恆律組出現在諸多的物理系統中。例如，非平衡態的氣體動力學、帶摩擦的水流、磁動力學等。本文首先證明，帶鬆弛項的雙曲型守恆律組的柯西問題的整體光滑解的存在唯一性；其二，證明了帶鬆弛項的雙曲型守恆律組的解與相應的平衡態守恆律的稀疏波解在大時間狀態下的l ~ p衰減率。 -
Higgs mechanism is very important to the standard model. the theoretical study on higgs boson ' s physical properties and its decay process is significant to find higgs bosons in experiments
標準模型中higgs機制的作用是至關重要的，在理論上研究higgs粒子的各種性質及其衰變方式對于實驗上探測發現higgs粒子有很大的指導意義。 -
It ' s a more accurate method in determining the isotopic abundance of uranium. the paper describes the measurement principles that allow accurate measurements to be taken on samples of arbitrary size, shape, and measurement geometry - and of arbitrary physical and chemical composition - through the use of know nuclear decay data ( half - lives and branching intensities ). this method relies on internal gamma - ray peaks from the spectrum under analysis to self - calibrate the unknown spectrum for energy and peak shape
本工作首次分析了pc fram軟體的演算法並使用高純鍺探測器探測歐共體低濃鈾標準樣品，使用pc fram軟體的預設參數並不能得到準確的富集度值，通過大量的實驗，本工作對鈾富集度測量中的關鍵問題進行了初步的研究並給出了本實驗室條件下準確分析鈾富集度的修正參數和條件。 -
Avoid the decay of the built environment of hong kong by promoting the maintenance and improvement of individual buildings as regards their structural stability, integrity of external finishes and fire safety as well as the improvement of the physical appearance and conditions of that built environment ; and
透過促進對個別建築物的結構穩定性外部修飾的完整性以及消防安全方面的保養和改善，以及促進改善香港已建設環境的外觀及狀況，從而避免該已建設環境頹敗及 -
Rehabilitation is the major tool to slow down the pace of physical decay of our building infrastructure. this is also an essential tool to upkeep the building heritage and the unique character of our city
修復工作主要目的是緩減樓宇殘破的速度，也是保存我們城市的建築特色、歷史文化資產的具體做法。
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