For one thing, no population can be driven entirely by density-independent factors all the time.
一方面，没有任何种群在所有的时间里完全只受“种群密度无关”因素的影响。
For one thing, no population can be driven entirely by density-independent factors all the time.
一方面，没有任何种群在所有的时间里完全只受受“种群密度无关”因素的影响。
Birth and death rates that do not change with density are density independent.
如果出生率和死亡率不随密度的变化而变换，则是非密度制约的。
He found that the viscosity of a gas is independent of its density.
他发现气体的黏性不取决于它的密度。
He found that the viscosity of a gas is independent of its density.
他发现气体的黏性不取决于它的密度。
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