density currents 中文意思是什麼
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Density currents generated by saline and fresh water interactions are also important in the transport of sediment in estuaries.
由鹽水和淡水相互作用所產生的異重流，在河口泥沙輸移中也是很重要的。 -
Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused
最後，應用ahrens的電磁軸承簡化模型，從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程，並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件，通過求解波動方程得到磁場的解析解，從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。 -
But owing to the constant presence of air currents, arranging both the dust and vapour in strata of varying extent and density, and of high or low clouds which both absorb and reflect the light in varying degrees, we see produced all those wondrous combinations of tints and those gorgeous ever - changing colours which are a constant source of admiration and delight to all who have the advantage of an uninterrupted view to the west and who are accustomed to watch for those not infrequent exhibitions of nature ' s kaleidoscopic colour painting
不過，由於不斷出現氣流，把法埃與水汽分層排列，廣度不均，密度各異，加上高低空常有雲層，不同程度地吸收並反射陽光，我們這才看到各種奇異的色調斑剝陸離，諸多絢麗的色彩變化萬千；任何人只要有幸將西方的景緻一覽無余，只要有心觀看大自然不時展現的那一幅幅瞬息萬變的彩畫，都會為之贊不絕口，喜不自勝。 -
The pictures of probabilistic characteristic in both sides of impendence matching balance transformers are drawn, and probabilistic density figures are also given. the simulation model of shaoshan 4 electrical tractor is raised, at the same time facing the restriction of probabilistic method, the paper raised that using monte carlo simulation absorbed harmonics currents of the model of electrical tractor and simulated the superposition of low harmonics currents. through compared with real time data, the monte carlo simulation can be confirmed, and the breakthrough point of restriction of using probabilistic method is discussed
為了有效模擬機車在運行中所產生的諧波電流，本文在matlab的平臺空間中建立了韶山4型電力機車的模擬模型，導入到matlab運算程序中，對低次諧波電流疊加進行模擬，從而證實了蒙特卡羅模擬法仍然是目前較為可靠可行的方法，同時討論了在電牽引系統中針對低次多諧波源疊加使用基於中心極限定理的概率分析方法必須使用相關參數進行修正，即需要和電力機車的帶電運行方式有機的結合在一起。 -
The main characteristics of the tides and tidal currents and tide - induced residual currents in bohai sea are presented. the model results show that the density - reduced currents are comparatively robust and make an important contribution to the general circulation in bohai sea in summer. but in winter, the effect of the wind stress on the bohai sea general circulation is dominant
文章較好的模擬了渤海的潮汐和潮流，給出了潮汐、潮流和潮致余流的一些主要特徵；模擬結果顯示，在夏季，渤海的密度環流相對較強，對渤海環流有重要貢獻；在冬季，渤海環流應是風應力的作用佔主導地位。 -
In order to meet demands for faster and more efficient data processing in these applications, it will require aggressive power management. that is to say, it will require special power supply to provide lower voltages with higher currents and fast transient capabilities, whilst high power density, high efficiency, and high reliability is also desired
為了滿足這些場合對更快、更有效的數據處理的要求，其供電電源的要求也在不斷提高，具體表現在：更低輸出電壓、更高輸出電流、高功率密度、高效率、快動態響應及高可靠性。
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