次生化石 的英文怎麼說

中文拼音 [cìshēnghuàdàn]
次生化石 英文
derived fossils
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 石 : 石量詞（容量單位, 十斗為一石） dan, a unit of dry measure for grain （= l00 sheng）
  1. The late ordovician - silurian - devonian - early carboniferous stratigraphic division and correlation, including the chronologic correlation of the donghe sandstone, which are the old great difficult key stratigraphic problems interfering with the development of the oil and gas exploration in the tarim basin, are synthetic studied by systematically applying chemobiostratigraphy. several important relevant stratigraphic boundaries are recognized, and the donghe sandstone is attributed to the frasnian, late devonian. the results of the study in particular proves that chemo - biostratigraphy has great significance and is a practical tool for high resolution stratigraphic division and correlation, especially for the region and or the bed with rare fossils

    首次系統應用化學生物地層學對長期遺留的嚴重阻礙了油氣勘探開發步伐的塔里木盆地重大疑難地層問題：晚奧陶世志留紀泥盆紀早石炭世地層劃分對比和東河砂巖時代等進行了綜合研究，釐定了幾條重要的相關地層界線，並將東河砂巖的時代確定為泥盆紀晚泥盆世弗拉斯期。這些研究成果表明，化學生物地層學對高解析度地層劃分對比尤其是對在化石缺乏地區和層段進行地層劃分對比工作有重要的意義和實用價值。
  2. In part three, the phylogeny of raphidioptera is analyzed. the cladistic method was first used to study familial phylogeny of fossil and living snake - flies

    第三部分：首次利用支序分類學方法，對現生和化石蛇蛉目的科級分類單元系統演化關系進行了研究。
  3. This study is a post - cruise study of this leg, calcareous nannofossil samples from sites 1146, 1147 and 1148 of leg 184 were analyzed to provide a high - resolution biostratigraphy for this leg and to investigate morphological variation of coccolith genus gephyrocapsa. the main results of this study are : 1. 12 late pliocene to pleistocene bio - events were recognized and 6 zones of martini ( 1971 ) were determined for the upper sediment sequences of sites 1146 and 1148

    本文作為大洋鉆探項目船下后續研究的一部分，對184航次中的1146站位和1147 、 1148站位的樣品進行了分析和研究，在船上科學家已經建立起的地層框架的基礎上進一步加密采樣，對生物事件標志化石類別進行數量統計，進一步確定了12個生物事件在鉆孔中的深度，建立起了兩個站位的高解析度的鈣質超微化石生物地層框架。
  4. By infrared spectrum study, the limonite ( feooh nh2o ) can be considered the main colorating mineral in the yellow and red jadeite, and the hematite is another colorating mineral in the red jadeite. the difference of color tone is due to the n value in the molecular formula feooh nh2o and the content of crystal water and adsorbent water. the iron ion came from the effloresced and eroded rocks, and formed fe ( oh ) 3 colloid reacted with the surface water

    周圍礦床的風化蝕變為表生水提供了鐵質，形成弱酸性的含fe （ oh ） _ 3膠體的水溶液，表生水流經翡翠礦石時， fe （ oh ） _ 3膠體附著在巖石的表面，經過脫水結晶和吸附，形成褐鐵礦膠體，褐鐵礦膠體沿裂隙或鬆散的礦物顆粒進入翡翠巖石中，逐漸累積沉澱，形成次生色層。
  5. The intense eluviation and weathering of soil with groundwater and run - off result in the enhancing of capacity of transference of some elements, such as si, al, fe, mn. the chemical reactions of the colloid particles in the soil water make those crannies or holes filled by some epigenetic clay minerals and quartz. then a great deal of white reticulate clay comes into being in the quaternary laterite of the dongting basin

    地下水和地表水強烈的淋溶作用使土壤中硅鋁鐵錳等元素的遷移能力增強，土壤膠體粒子之間的化學反應，使得這些孔隙空間在後期逐漸被次生黏土礦物和石英所充填，最終，在洞庭盆地第四系紅土地層中形成大量的蠕蟲狀和根狀白色網紋。
  6. We have observed the following characteristics of anatomical structure and development : ( 1 ) the primary roots belong to archetype and the lateral roots occur in the position toward the xylem of the vascular cylinder ; ( 2 ) the root endodermis consists of thicken casparian strips, and there are from two lo four layers parenchyma cells near the pericycle ; ( 3 ) the pith and resins canals are absent in the toots ; ( 4 ) secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem ; ( 5 ) tanning materials are abundant in pericycle cells and phelloderm cells ; ( 6 ) sclereids are found in secondary phloem, and rays are rather rich in secondary xylem

    結果表明：氣生不定根具有以下結構特徵和發育特點： （ 1 ）根為二原型，側根正對著木質部發生； （ 2 ）幼根內皮層細胞具凱氏帶加厚，維管柱內緊挨中柱鞘內側具有2 ~ 4層大型薄壁細胞； （ 2 ）根中無髓和樹脂道； （ 4 ）次生結構發生於根毛區，維管形成層由初生木質部和初生韌皮部之間的薄壁細胞轉化形成； （ 5 ）中柱鞘和栓內層細胞富含單寧類物質； （ 6 ）次生韌皮部有石細胞，次生木質部射線發達。
  7. Taiping maifan mineral contacts with migmatitic granite and grandiosity, the mother rock is granite which include a lot of potassium elements and the major mineral of maifan stone is plagiocase, k - feldspar, minor mineral is biotite, muscovite, quartz and so on.,

    麥飯石的主要礦物為斜長石、鉀長石，次生礦物為黑雲母、白雲母、石英等，巖石化學類型屬鈣堿系列，主要微量元素和稀土元素均與中華麥飯石相近。
  8. Of the 16 families studied, 5 families are first recorded from china. 6 families were oldest in geological history in the world. the results demonstrated that the east asian, especially northeast china, is one of the original places of snake - flies and lacewings

    共有6個科級單元在世界上是最低層位， 5個科級單元化石在我國是首次發現，研究結果表明我國北方在中生代是昆蟲的重要起源與演化中心之一。
  9. Owing to complicated earth ' s surface condition such as the steep stratum outcropping of front - zone of mountain or the huge thick gravel stratum ' s overlay and earth ' s surface large undulation, complicated underground geology structure developed extremely such as thrust and overthrust nappe, and violent change of the lateral velocity, etc. in front - zone of mountain there are a series of problems such as serious secondary disturbance and low signal - to - noise ratio in seismic exploration gathering

    由於山前帶高陡巖層出露或巨厚礫石層的覆蓋、地表起伏大等復雜的地表條件、逆沖和逆掩推覆等復雜地下地質構造發育、速度橫向變化劇烈等原因，造成了山前帶地震勘探資料採集存在次生干擾嚴重和信噪比低等一系列問題。
  10. Fossil evidence has suggested that there was a major jump in eukaryotic complexity some 600 million years ago, during a period dubbed the cambrian ex - plosion

    化石證據已經顯示出在大約在6億年前，原核細胞復雜體在被稱為「寒武紀大爆發」的時期發生了一次大的飛躍。
  11. For the ceramic materials, the effects of additives such as pbo, b2o3, co2o3, mno2, cr2o3, sb2o3 on the electrical properties of bismuth - free zno - glass varistor were studied. the glass phase formed mainly by pbo and b2o3 during sintering process could decrease the sintering temperature, improve grain uniform growth and inhibit grain second growth. nonlinear property could be improved by properly adding co2o3, mno2, and cr2o3

    對瓷料而言，系統研究了非bi系zno -玻璃料配方體系中pbo 、 b2o3 、 co2o3 、 mno2 、 cr2o3 、 sb2o3等添加劑對壓敏電阻電性能的影響規律，其中， pbo 、 b2o3在燒結過程中形成的玻璃相，可降低燒結溫度，促進晶粒均勻生長，抑制晶粒二次長大， co2o3 、 mno2 、 cr2o3做為非線性添加劑，適量添加可提高樣品的非線性， sb2o3做為改性添加劑，在燒結過程形成的尖晶石相可細化晶粒，抑制晶粒二次生長，改善樣品的綜合電性能。
  12. The first fossil soft - shell eggs with embryos from late mesozoic jehol biota of western liaoning, china

    遼西晚中生代熱河生物群中首次發現具胚胎的軟殼蛋化石
  13. Occurred through giant panda s alimentary canal. the cell wall became thinner, and the rupture and loss of primary and secondary wall was observed. therefore, it showed that giant panda has the ability to digest part of components of cell wall, such as pectin and semicellulose, etc. furthermore, it is possible that giant panda can digest a little cellulose. the morphological method used in this study is a new idea for nutrition research. the ability of utilization of cell wall of bamboo by giant panda is unique in carnivore. it is adaptation to its phytophage

    Sp .筍細胞壁的利用狀況，利用石蠟切片半薄切片和超薄切片技術，通過光鏡和透射電子顯微鏡觀察，對比研究野生大熊貓食物和糞便中的松花竹筍細胞壁的形態。發現竹筍經過大熊貓的消化后，其細胞壁在形態上有明顯的變化，薄壁細胞細胞壁變薄，厚壁細胞初生壁和次生壁都有部分消失缺損或扭曲。
  14. The geological setting of chengjiang biota firstly, the pattern of chinese tectonic has been cited, which can help us to understand the place of china in the world clearly and easily. secondly, the lower cambrian of china and the early cambrian geomorph of eastern yunnan have been included

    澄江生物群的地質構造背景首先介紹了中國區域大地構造格局，其次是關于中國的寒武系和滇東地區早寒武世古地理概貌的論述，緊接著是澄江化石庫的古地理概貌。
  15. By digussing the key exploration area of each structural unit, this paper pointed out : ( 1 ) look for the paleo - reservior foemed in late hercynian and second reservoir formed in himalyan periods in the west part of bachu arch ; ( 2 ) key exploration area in the east of bachu arch is middle - low cambrian self - generation and self - reservoir inside primary reservior. ( 3 ) the exploration on markit slope should focus on paleohigh formed during late caledonian, residual paleo - reservior ( middle - low cambrian primary inside reservoir, ordovician weathering crust oil / gas pool ) and subtle oil / gas trap formed in late period

    分析討論了每個構造單元的勘探重點：在巴楚隆起西段應以尋找加里東期和海西晚期形成古油藏和喜山期形成的次生油藏為重點；巴楚隆起東段應以中下寒武的自生自儲的原生內幕油氣藏為主要勘探目標；麥蓋提斜坡應以伽里東中晚期形成的古隆起，海西晚期形成的，現未被完全破壞的殘留古油藏（中下寒武原生內幕油氣藏、奧陶系風化殼油藏）和以石炭二疊為烴源巖的晚期成藏的隱閉油氣藏二者並重的方針。
  16. Diagenesis not only can change mineral composition, fabric component, and texture, etc., but more important it can change the reservoir capability greatly, that is, it can build up, or reduce, or enlarge original pores, and even form a series of diagenetic crack. those secondary pores and cracks are important to improve reservoir capability, especially for carbonate

    成巖作用不僅使巖石或沉積物的礦物成分結構組分構造等發生程度不同的變化，更重要的是使原巖的儲集性能發生很大的變化，即對原生孔隙或堵塞或殘留或擴大，而且還可產生一系列的成巖孔縫次生孔縫，這些次生孔縫對巖石儲集性的良化，尤其是對碳酸鹽巖是至關重要的。
  17. Based on abundant statistic data and photographs of seeping - type uranium deposits at the southern margin of ili basin, detailed description is given of the oxidation - migration of organic matter during seeping of oxygen - bearing water, secondary alteration of minerals, and concentration of uranium and associated elements on geochemical reduction barriers as well as formation of secondary seeping uranium deposits

    摘要採用伊犁盆地南緣滲入鈾礦床中的大量統計數據、圖片等資料，論述了在層間滲入型鈾礦床中，有機質在含氧滲流水作用下，發生氧化遷移，巖石中的礦物次生蝕變，並在地球化學還原障上產生鈾及伴生元素的富集，形成後生滲入鈾礦床的過程。
  18. The first non - marine ecostratigraphic research was made in dividing late mesozoic strata of fengning, hebei province

    在化石產地的中生代地層劃分中，首次對非海相生態地層學進行了研究。
  19. The mechanism of rockfill rheology is rectified theoretically. as a kind of man - made discrete material, the rockfill is similar to the consolidated soil in the aspect of rheology. the main causes of rockfill rheology are the breaking and sliding of particles, filling of pores

    從理論上深入論證分析了堆石流變的機理，對于堆石這種非自然存在的散粒材料，其流變與土體的次固結相類似，產生堆石流變的主要原因是顆粒破碎細化、滑移充填孔隙所致。
  20. Well - preserved autofluorescence properties show a correlation between acritarchs morphology and the intensity of organic cell walls and two groups of microfossils are distinguished

    這也是我國首次用化石藻類熒光與生物屬性關系進行研究的嘗試，為今後利用熒光進行化石藻類分選和超微結構研究作了有益的探索。
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