The differences between the two reciprocal equations of the competition-density effect in nonself-thinning populations and self-thinning populations were analyzed theoretically.
对在无自然稀疏和有自然稀疏状况下有关植物群落的竞争密度效应的两个倒数方程的差异进行了理论分析。
School education, social influence, and self-adjustment are in a reciprocal relation,.
学校教育、社会影响、自我调控三个方面相互联系、相互制约。
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