“梯度”造句

穿过地理梯度, 莱文斯预料有分布区不重叠的小种或近群种.
Across geographic gradients, Levins expects allopatric races or coenospecies exist.

航空磁梯度仪在六十年代中期交付使用.
The airborne magnetic gradiometer came into use in the middle 1960 s.

这说明水动力条件具有很明显的位能梯度.
This indicates a hydrodynamic condition with a very marked potentiometric gradient.

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