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small shelly fossils
释义
small shelly fossils
Encyclopedia
理学
微体古生物学
释
small shelly fossils
小壳化石
寒武纪早期地层中出现的个体较小(多数为毫米级)、多为后生动物壳体或躯体表面离散骨片的骨骼化石的统称。
理学
小壳化石群
释
small shelly fossils
小壳化石群
寒武纪早期多门类骨骼动物化石的统称。
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occulting disk
occulting mask
occulting object
occulting source
occultor
occult precipitation
occult virus
occupancy
occupancy probability
occupancy problem
occupancy rate
occupancy; site occupation factor (SOF)
occupant density of exhibition hall
occupation
occupational acne
occupational acute allergic alveolitis
occupational analysis
occupational apparel
occupational arsenism poisoning
occupational bladder cancer
occupational cadmium poisoning
occupational carcinogen
occupational cataract
occupational chromium poisoning
Occupational Classification Code
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