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- One reversal was 2.6 million years ago marking the start of the Matayama epoch, a period that lasted until the magnetic field flipped again700, 000 years ago to begin the present Brunhes epoch. 其中的一次逆轉發(fā)生在260萬(wàn)年前，更新世從此開(kāi)始，這一時(shí)期延續到大約70萬(wàn)年前地球磁場(chǎng)再一次逆轉，即現在的全新世的開(kāi)始。
- Einstein's theory marked a new epoch in physics. 愛(ài)因斯坦理論開(kāi)創(chuàng )了物理學(xué)的新紀元。
- The past epoch is gone, never to return. 過(guò)去的時(shí)代已經(jīng)一去不復返了。
- Einstein's theory marked a new epoch in history. 愛(ài)因斯坦的理論標志著(zhù)歷史上一個(gè)新時(shí)代的開(kāi)始。
- The curtain was rung up on a new epoch in our history. 我國歷史上一個(gè)新紀元的序幕揭開(kāi)了。
- Einstein's theory marked a new epoch in mathematics. 愛(ài)因斯坦理論開(kāi)創(chuàng )了數學(xué)的新紀元。
- The teaching method marked a now epoch in education. 這種教學(xué)方法標志著(zhù)教育的新時(shí)代。
- His audience with the president was an epoch in his life. 他謁見(jiàn)總統是他一生中值得紀念的一件事。
- Measurement shows that the normal polarity appears above the depth of 26.90m in Core DC-1 and 61.00m in Core DC-2 belonging to "Brunhes" normal epoch. 本文報道了東海DC-1;DC-2孔古地磁研究結果;表明DC-l孔26.;9m巖芯及DC-2孔61
- His theory marked a new epoch in mathematics. 他的學(xué)說(shuō)標志著(zhù)數學(xué)上的新紀元。
- Ice age refers to the latest glacial epoch. 冰河時(shí)期指的是最近的一個(gè)冰川時(shí)期。
- The invention of the computer makes an epoch. 計算機的發(fā)明是劃時(shí)代的大事。
- Of, belonging to, or denoting the Holocene Epoch. 全新世的屬于或表示全新世的
- Of, relating to, or characteristic of an epoch. 開(kāi)新紀元的與新紀元或其特征有關(guān)的
- The Holocene Epoch or its system of deposits. 全新世時(shí)期或該時(shí)期的沉積系統
- The Pleistocene Epoch or system of deposits. 更新世時(shí)期或更新世沉積物系統
- The characteristics of the epoch. 就是時(shí)代的特點(diǎn)。
- The deposits of the Miocene Epoch. 中新世的沉積物
- The deposits of the Oligocene Epoch. 漸新統漸新世的沉積物
- The epoch of revolution creates great figures. 革命時(shí)代造就偉大的人物。
