carbon-nitrogen ratio 碳 ; 碳氮比率 ; 氮比
carbon-nitrogen ratio of leaf 叶片碳氮比
Different carbon source, nitrogen source and inorganic salts in medium affected the cell growth, the ice nucleation activity and the xanthan gum ratio.
培养基中不同的碳源、氮源和无机盐影响冰核细菌的生长、冰核蛋白的表达及黄原胶的产率。
The diluting gas is hydrogen, argon or nitrogen. The mol ratio of carbon source to diluting gas is 0.5-5.
稀释气体为氢气、氩气、氮气，碳源与稀释气体的摩尔比在0．5～5范围内；
The best carbon source is glucose, and the best nitrogen sources are peptone, beef extract paste and wheat bran. The most favorable ratio of C/N is 40: 1.
结果表明：最适宜的碳源是葡萄糖，最适宜的氮源是蛋白胨、麦麸、牛肉膏，最适宜的碳氮比是40：1。
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