他们还怀疑流体外核产生的磁场领域通过对流。
They also suspect a fluid outer core generates the planet's magnetic field though convection.
虽然这颗星星的内部是大部分中子构成的流体，地壳是由破裂的原子，未知元素的原子核构成。
Though the interior of the star is a kind of fluid mass of mostly neutrons, the crust is composed of broken-up atoms, the nuclei of unknown elements.
根据计算流体力学与传热学原理，建立了描述铝合金电阻点焊液态熔核流动行为和传热过程的轴对称有限元模型。
Based on theories of computational fluid dynamics and heat transfer, an axial symmetry finite element model of velocity and temperature field of spot welding for aluminum alloy is established.
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