三个采样点土壤甲螨群落的组成和数量分布均有明显不同。
The soil oribatid group formation and quantity distribution are obviously different.
作者测定了北京地区129个采样点及32个剖面的农业土壤样品中的镍含量。
Nickel content in soil samples from 129 sites and 32 soil profiles has been measured.
作者测定了北京地区129个采样点及32个剖面的农业土壤样品中的镍含量。
Nickel content in soil samples from 129 sites and 32 soil profiles has been measured.
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