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The value of vegetation ecosystem services: a case of Qinling-Daba Mountains
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2007/8/24
According to differences in vegetation types and their coverage, combining the latest research, using theory and method on the value of vegetation ecosystem services, this paper not only c...
Normal reference value of hemoglobin of young women and geographical factors in China
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2007/8/24
A research is conducted on the relationship between the normal reference value of 20,475 examples of hemoglobin of young women and five geographical factors in 208 areas in China, the norm...