k economical use efficiency 钾素经济利用效率
"The Japanese use less energy, there's no doubt about that," said Alan K. Meier, a scientist specializing in energy efficiency at Lawrence Berkeley National Laboratory in California.
位于加利福尼亚的劳伦·斯伯·克力国家实验室的科学家阿兰•k•米尔说道。他专门研究能源效率。
“The Japanese use less energy, there’s no doubt about that,” said Alan K. Meier, a scientist specializing in energy efficiency at Lawrence Berkeley National Laboratory in California.
位于加利福尼亚的劳伦斯伯克力国家实验室的科学家阿兰•K•米尔说道。 他专门研究能源效率。
P fertilization increased N, P and K accumulation in tree biomass and nutrient use efficiency in wood and biomass production.
施P肥还增加了树木N、P和K的养分积累量,提高了上述养分的利用效率。
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