英语词汇cretaceous-tertiary怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	cretaceous-tertiary
释义	cretaceous-tertiary 网络释义 1 ?第三纪 ...认为恐龙在撞击事件前就因如火山活动，气候变化或海平面波动等其它因素而已经灭绝，因为在白垩纪/第三纪（Cretaceous-Tertiary）之交，即K-T界线附近3米左右的地层中缺少恐龙化石发现的证据。 2 ?白垩白垩-第三纪短语 1 Cretaceous-Tertiary extinction event 白垩纪 2 late cretaceous-tertiary periods 晚白垩第三纪 3 cretaceous-tertiary red beds 白垩纪双语例句 1 This change in plankton found in marine deposits is what marks the boundary between the Cretaceous and the Tertiary. 海洋沉积物中浮游生物的这种变化标志着白垩纪和第三纪的分界线。 2 This 65.5-million-year-old layer of Earth separates fossils of the Cretaceous period from those of the Tertiary period. 这个有着6550万年历史的地层分离了白垩纪的化石和第三纪的化石。 3 From the Cretaceous to Tertiary, fault sealing built up with thickening of the overlying strata. 白垩纪至第三纪，随上覆地层增厚，断层封闭性增强。
随便看	lower control limit (lcl) lower control limit, LCL lower cord lower core barrel lower core plate lower core structures lower core support barrel lower core support pad lower core support plate lower core support structures lower corona lower-cost lower cost lower counter lower course lower course of a river lower course of river lower court lower court lower court lower cover lower covert lower crankcase lower cretaceous lower cretaceous oils

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