基本解释[地球科學]放射蟲燧石英汉例句雙語例句There exists abundant Radiolaria in the chert, and the radiolarian association suggests that the chert was formed in the last period of Late Jurassic.矽質巖中含有大量放射蟲，放射蟲組郃顯示矽質巖的沉積時代爲晚侏羅世晚期。radiolarian chert更多例句词组短语短語radiolarian bedded chert 放射蟲矽質巖radiolarian chert更多词组专业释义地球科學放射蟲燧石