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词汇
硬骨魚綱
释义
硬骨魚綱
yìng gǔ yú gāng
脊椎动物鱼类的一纲。种类很多,大小、形状差异很大,但内骨骼大部硬化,鳞片为真皮性鳞,身体多呈流线型,前后尖削,有成对的胸鳍和腹鳍,亦有单数鳍者,鳍有硬棘支撑,鳃在咽旁的鳃室中。
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sonic collector
sonic communication
sonic comparator
sonic computed tomography
sonic depth finder
sonic depth finders
sonic depth-finding instrument
sonic depth recorder
sonic depth sounder
sonic detecting tube
sonic detection
sonic detector
sonic device
sonic diagnosis
sonic diathermy machine
sonic differential time
sonic diffraction
sonic digital cartridge
sonic digitizer
sonic direction-finder
sonic discharge carburetor
sonic disintegration
sonic disintegrator
sonic draft gauge
sonic drill for shallow hole
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更新时间:2025/7/30 8:13:32