“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.