nbb 中文意思是什麼
nbb
解釋
生管-
The photocatalytic activities of the xw11 / tio2 ( x = p, si, ge ) composite films were tested via degradation of aqueous azo - dyes, congo red ( cr ) and naphthol blue black ( nbb ). it was observed that the photocatalytic activities of the three composite films are much higher than that of the pure tio2 film, mainly attributed to the synergetic effect between xw11 and tio2, i. e., xw11 - catalyzed electron transfer from the conduction band ( cb ) of photoexicited tio2 to itself
結果表明三種復合膜均具有遠高於純tio _ 2膜的活性，主要歸因於復合膜材料中多金屬氧酸鹽和tio _ 2之間存在的協同效應，即作為強電子受體的多金屬氧酸鹽接受tio _ 2受光激發形成的導帶光生電子，延長了空穴-電子的再復合時間，同時自身仍具有光活性。 -
And vice chairman of the nbb ningxia biology board, has spent ten years on this technique. this technique made important breakthroughs both to the plant tissue culture technique and to the conventional seedling techniques
人類從古至今在開發利用經濟植物的歷程中，除了利用種子有性繁殖技術以外，曾不倦地對植物無性繁殖技術進行了許多探索和創新。
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