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寒武纪大爆发
释义
寒武纪大爆发
Encyclopedia
理学
古生物学
释
Cambrian explosion
寒武纪大爆发
地球生命系统起源与演化早期发生的一次多样性爆发式增加事件。具体是指距今5.4亿~5.0亿年间,地球海洋生命系统中“突然”出现了门类众多的后生动物(包括无脊椎动物和脊椎动物)。
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ultrahyperbolic equation
ultraideal
ultrainfinite point
ultraintuitionism
ultraionization potential
ultra large scale integrated circuit
ultra large scale integrated circuit, ULSI
ultralattice
ultra-light wrought magnesium-lithium alloy
ultralimit
ultra-long spaced electric log
ultra-long wave
ultra-low density fiberboard
ultra low density polyethylene
ultra low density polyethylene (ULDPE)
ultra low density proppant
ultra-low emission
ultra low energy building
ultra low expansion glass
ultra-low frequency
ultralow interfacial tension
ultra-low sulfur diesel production
ultra-low temperature
ultralow temperature
ultra-low temperature freezer
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