In order to translocate N efficiently within plant and maximize growth, the relationship between nitrogen nutrition and the cost of C, photosynthesis, and water equilibrium were discussed.
讨论了植物的氮（N）素营养过程与C的消耗关系、光合作用与N投入的关系、水分平衡与植物的N素营养的关系。
Used the way of perpendicular design to equilibrium arrange in pairs or groups of diesel-methanol-n-butanol-oleic acid, and then looked for a optimize result from the experiments of a diesel engine.
利用正交设计方法对柴油—甲醇—正丁醇—油酸的混合燃料进行均衡搭配，然后在台架试验中寻求优化解。
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