億年 的英文怎麼說

中文拼音 [nián]
億年 英文
b. y
  • : 數詞(一萬萬) a hundred million
  • : Ⅰ名詞1 (時間單位) year 2 (元旦或春節) new year 3 (歲數; 年紀) age 4 (一生中按年齡劃分的階...
  1. According to the conventional hypothesis, the earliest living cells emerged as a result of chemical evolution on our planet billions of years ago in a process called abiogenesis

    根據傳統的假說,最初的活細胞,肇生於數十億年前地球上的化學演化過程,這種說法稱為無生源說。
  2. The sedimentation is the foundation, affecting the basic pattern of the reservoir, and the sedimentary facies zones beneficial to the formation and evolution of the reservoir includes platform edge bank facies, introplatform point beach facies and acclivity sedimentary facies, etc. ; the diagenesis is the key factor, determining the pattern and scope of the final distribution of the reservoir and being of great influence on reservoir structure, and the diagenesis of promoting the formation of storage rooms is mainly the dissolution occurred during hypergene stage and burial stage ; and the tectonism is the condition of influencing the connectivity among various reservoir bodies and among the storage rooms within a single reservoir body

    該套儲層是在4億年左右的地質歷史中,由沉積、成巖和構造作用相互影響而形成的最終成果:其中沉積作用是基礎,影響著儲層的基本形態,有利於儲層形成與演化的沉積相為臺地邊緣灘、臺內點灘和上斜坡等沉積相帶;成巖作用是關鍵,決定了儲層的最終分佈形態和范圍,對儲層結構的影響至關重要,促進儲集空間形成的成巖作用主要有表生期和埋藏期的溶解作用;構造作用是條件,影響著各儲集體之間以及單一儲集體內部儲集空間的連通情況。
  3. Simple organisms such as bacteria and alga have been found fossil in rocks more than 3000 m. y. old.

    簡單的生物,如細菌和藻類,它們的化石已在三十多億年的巖石中發現。
  4. In fact, all life during the more than one billion years of the archaean was bacterial

    實際上,所有生活在archaean的超過一十億年期間是細菌的。
  5. It was early in the archaean era, 3. 8 to 2. 5 billion years ago, that life first appeared on earth

    它在及早在archaean時代, 3 . 8到2 . 5十億年前,生活第一次出現在地球上。
  6. The peak is composed of banded biotite tonalite of fine mediate grain developing in mengshan rock suit of fuping period of archean era about 2. 7billion years ago. it ' s very steep

    由27億年左右形成的太古代阜平期蒙山巖套條帶狀中細粒黑雲母英雲閃長巖構成,柱狀節理發育,差異性風化剝蝕作用強烈,組成雲蒙「山」峰,俗稱「掛心崛子」 ,形容雲蒙峰之陡峻。
  7. Even at meridiani, basaltic sands lie atop the lake sediments, indicating that the site has been parched for two billion to three billion years

    甚至在子午線地盤,玄武巖質的沙披覆在湖床沉積物上,顯示此地已經乾涸了20 ~ 30億年
  8. It has a half-life of about 41/2 billion years.

    它的半衰期大約為45億年
  9. At some time more than five billion years ago the universe started.

    在50億年前的某個時候,宇宙開始形成。
  10. The sun has been emitting energy at this rate for billions of years.

    太陽以這樣的強度輻射已有10億年之久。
  11. The youngest rocks found on the moon are 3 billion years old.

    在月球上發現的地質代最晚的巖石已有30億年歷史了。
  12. As a slowly contracting dwarf the star may remain luminous for billions of years.

    收縮較慢的白矮星仍會發光幾十億年
  13. It dates from 125 million years before biplanes were invented

    在雙翼飛機問世之前的1 . 25億年前,這種動物翱翔在天空。
  14. The hill, shaped with the weathering and eroding along the plumb joints of the granodiorites which formed about 2. 7 billion years ago, is like buddha palm especially verisimilitude in green bosk

    佛掌山為27億年左右形成的花崗閃長巖,沿垂直節理風化剝蝕后形成奇特的佛掌型山,在綠樹叢中尤顯逼真。
  15. Looking at these isotopes allows the chondrules to be dated, and they were formed 4. 56 billion years ago

    觀察這些同位素可以估算出隕石球粒的齡,他們是在45 . 6億年前形成的。
  16. That the earth has an iron - rich liquid core, sufficient energy to drive convection and a coriolis force to twist the convecting fluid are primary reasons why the geodynamo has sustained itself for billions of years

    地球擁有富含鐵的液態核心、有足夠的能量驅動對流,並具有科氏力可使對流的流體扭轉,這些是地球發電機之所以能自我維持數十億年的主要原因。
  17. A 13 - billion year old planet orbiting a pair of long - dead stars in a crowded globular cluster : even for the hubble space telescope, that ' s amazing

    在一個擁擠的球狀星團中,一顆130億年的古老星球正圍繞著一對死寂多時的星星而運行,這事連見多識廣的"哈勃"都驚嘆不已
  18. The minerogenetic model of xikuangshan type copper deposit can be concluded that : in jinningian - chengjiangian, the activity of xiaojiang discordogenic fault form dextrorotation sub - structure in dongchuan ore area

    昆陽裂谷內的多數銅礦同位素成礦齡多集中在9 . 06 . 5億年之間,屬于晉寧-澄江期,與rodina大陸裂解時限相當。
  19. Their ancestors have been eating according to flavor for upwards of a billion years.

    他們的祖先已經根據滋味來吃東西吃了十億年以上了。
  20. Composed of micro diamonds, aluminum oxide, and silicon carbide, the isotopic distribution of these grains bore the telltale marks of their birth : ancient supernovas and red giant stars, that shone brightly and then flickered out, billions of years ago, before the birth of the solar system

    由微金剛石、鋁氧化物、碳化硅組成的這些微粒的同位素分佈透露出它們的誕生:那些數十億年前,在太陽系尚未誕生時,曾經閃耀並最終熄滅的古老超新星和紅巨星。
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