epoch是什么意思,epoch怎么读,
pleistocene epoch更新世
holocene epoch全新世
词根:epoch
adj.epochal 划时代的;新纪元的
1.There is growing evidence that the presence of humans has altered the Earth so much that a new Epoch of geologic history has begun—the Anthropocene Epoch, a new human-influenced Epoch.
有越来越多的证据表明,人类的存在使地球发生了巨大的变化,地质史上的一个新时代已经开始了——即人世时代,一个受人类影响的新时代。
2.Different ratios in the shells preserved in various layers of sediment reveal the temperature changes in the oceans during the Pleistocene epoch.
不同沉积层中保存的壳有不同的含量比例,显示出更新代海洋温度的变化。