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首现点
释义
首现点
Encyclopedia
理学
生物地层带
释
first appearance datum
首现点
某一化石分类单元在地层中出现的第一个层位(薄层)。是生物面的一种。又称首现基准面。
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mechanics of aircraft structures
mechanics of biomaterials
mechanics of complex materials
mechanics of composites
mechanics of composite structures
mechanics of continuous media
mechanics of explosion
mechanics of fishing gear
mechanics of flight
mechanics of fluid flow in porous media
mechanics of geological structure
mechanics of granular materials
mechanics of gyroscopes
mechanics of human structure materials
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mechanics of nanocrystalline materials
mechanics of nonlocal elastic waves
mechanics of particles
mechanics of rigid bodies
mechanics of sediment transport
mechanics of solids
mechanics of structures
mechanics of superconducting magnets with composite materials
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