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palaeontology
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palaeontology
Encyclopedia
理学
古生物学
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palaeontology
古生物学
研究地质历史时期生物的形态、构造、分类、生态、起源、分布、演化、灭绝等规律的学科。地质学和生物学交叉融合的产物。关心地球生命起源、演化特别是辐射演化与灭绝,特定地质事件的发生时限、规模、型式及背景机制,相关地层时代及其精确划分与对比等,一系列与基础理论和应用实践密切相关的重大科学问题。古生物学研究是人类回答地球生物圈来龙去脉的重要且不可或缺的途径。
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reducible topological space
reducible transformation
reducible variety
reducible Verma module
reducing
reducing agent
reducing column of Chinese timber construction
reducing emissions from deforestation and forest degradation and the role of conservation, sustainable management of forests and enhancement of forest carbon stocks in developing countries
reducing factor
reducing flame
reducing mill
Reducing Process
reducing projector
reducing roasting of mineral raw material
reducing subspace
reducing sugar
reducing terminus
reducing toxicity and strengthen effects
Reducing type of residential area
reductan
reductan; reducing agent
reductant
reductase
reducting active DNA alkylating agent
reducting active DNA crosslinking reagent
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