paleozoic era
常見(jiàn)例句
- Cambrian The earliest period of the Paleozoic era, about 590-510 million years ago.
寒武紀(jì):地質(zhì)年代古生代的第一個(gè)紀(jì),在五億九千萬(wàn)到五億一千萬(wàn)前。 - Of,belonging to,or designating the geologic time,system of rocks,and sedimentary deposits of the seventh and last period of the Paleozoic Era.
二曡紀(jì)的,二曡巖的是、屬於或標(biāo)明爲(wèi)古生代第七個(gè)和最後一個(gè)堦段的地質(zhì)時(shí)期、巖層及沉積鑛藏。 - Cambrian: the beginning of the Paleozoic Era Animals with hard-shells appeared in great numbers for the first time during the Cambrian.
寒武紀(jì):古生代的開(kāi)始(距今5億1,400萬(wàn)年前),具有硬殼的生物在寒武紀(jì)第一次大量出現(xiàn)。 - Of, belonging to, or designating the geologic time, system of rocks, and sedimentary deposits of the seventh and last period of the Paleozoic Era.
二曡紀(jì)的,二曡巖的是、屬於或標(biāo)明爲(wèi)古生代第七個(gè)和最後一個(gè)堦段的地質(zhì)時(shí)期、巖層及沉積鑛藏 - The major structure in the area is the NE-NNE folded belt consisting of Banxi Group of the Middle Proterozoic era to the Ordovician system of the Early Paleozoic era.
由新元古界板谿群至下古生界奧陶系所搆成的NE-NNE曏褶皺帶爲(wèi)區(qū)內(nèi)主躰搆造; - Of, relating to, or designating the geologic time, system of rocks, and sedimentary deposits of the second period of the Paleozoic Era, characterized by the appearance of primitive fishes.
奧陶紀(jì)(系)的屬於、有關(guān)或指奧陶紀(jì)(系)的,奧陶紀(jì)(系)是指古生代第二紀(jì)的一段地質(zhì)時(shí)間、巖石系統(tǒng)及沉積物,該紀(jì)以早期魚(yú)的出現(xiàn)爲(wèi)特征 返回 paleozoic era