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孢粉化石的命名和分类
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孢粉化石的命名和分类
Encyclopedia
理学
古植物学
释
classification and nomenclature of spore and pollen fossil
孢粉化石的命名和分类
对古植物孢子和花粉形成的化石,按照其形态特征并与现生植物孢粉对比进行描述鉴定,以确定其在植物界分类位置和命名的系统方法。
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ultrasonic vibration drilling
ultrasonic vibration extrusion strengthening
ultrasonic vibration finishing
ultrasonic vibration grinding
ultrasonic vibration milling
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ultrasonic weak scattering
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ultrasonogram
ultrasonography
ultrasonoscopy
ultrasound
ultrasound ablation
ultrasound-assisted cutting
ultrasound contrast agent
ultrasound contrast imaging
ultrasound Doppler
ultrasound elastography
ultrasound elastography imaging
ultrasound hemostasis
ultrasound holography
ultrasound hyperthermia
ultrasound imaging
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