nm-la 中文意思是什麼

nm-la 解釋

  • nm : NM =night message 夜間電報。
  • la : La = 【化學】 lanthanum n 【音樂】長音階全音階的第六音,A音的唱名。int 〈古、方〉啊呀 看哪 〈用...
  1. 1 lanthanide hydrides ( m = la, nd, sm, dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure. the rate of hydrogenation decreased with increasing atomic number of lanthanides. transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm

    本論文首次提出一種在溫和條件下催化合成納米尺寸的鑭系金屬氫化物的方法,介紹在常溫常壓下,鑭、釹、釤、鏑、鐿五種鑭系金屬在四氫呋喃( thf )溶劑中,催化劑作用下與氫氣直接化合形成相應的納米尺寸的鑭系金屬氫化物。
  2. Mean, variance, standard deviation, coefficient of variation of fourteen vital morphological characters indicated that great diversity existed either among species or among populations, with cv ranging from 28. 89 - 122. 36 % ( except dtm, which has a cv of 4. 72 % ). correlation analysis indicated that il showed a significant positive correlations with pfk ll and lw ( p < 0. 05 ), but a negative correlation with nm ( p < 0. 05 ). there were also strong positive correlations between each other of ll, lw, la and sw

    相關分析表明,節間長度與株高、葉長、葉寬呈顯著正相關,而與主莖節數呈顯著負相關;葉長、葉寬、葉面積、千粒重四個性狀相互之間存在極顯著正相關;干重和單株種子產量兩者之間存在極顯著正相關;出苗率與千粒重之間存在顯著負相關;生長習性與分枝數之間存在顯著正相關;全生育天數與生長習性之間存在顯著負相關。
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