even-mass number 中文意思是什麼
even-mass number
解釋
偶質量數-
Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。 -
According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。 -
Drawing the following concludes : ( 1 ) for the different metallic small particles with even number or odd number, the heat capacity is varied. the result is different from the bulk metal in essence. at the low temperature, the distribution of the discrete energy levels has important effects on the heat capacity ; at the high temperature, the distribution of the discrete energy levels has little effects because of the involving of mass electrons into the energy distribution
得到如下結論： （ 1 ）金屬小粒子所含的電子數奇偶性不同，其電子熱容是不同的，這與大塊金屬有本質區別；低溫極限時電子熱容受能級分佈的影響很大；而在高溫時，有大量的電子參與能量配位，比熱遵循大塊金屬的線性規律，能級分佈的影響小時。
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