牙形 的英文怎麼說

中文拼音 [yáxíng]
牙形 英文
thread form
  • 牙 : 名詞1. （牙齒） tooth 2. （象牙） ivory 3. （形狀像牙齒的東西） tooth-like thing 4. （姓氏） a surname
  1. From the late middle ordovician to the end of ordovician, the cephalopods, gastropods and corals in the erlangping trough, and the conodonts, coral, brachiopods, cephalopods as well as trilobites in the xichuan shelf were from the north china province

    在中奧陶世晚期至奧陶紀末，二郎坪海槽的腹足類、頭足類和珊瑚與浙川陸棚的牙形石、珊瑚、腕足類、頭足類和三葉蟲均屬華北生物省。
  2. Metric buttress threads ; thread profiles

    米制鋸齒螺紋.螺紋牙形
  3. From the cambrian to the early middle ordovician, the cambrian radiolaria and the early ordovician conodonts of the erlangping trough in the northern part of eqm, and the cambrian trilobites and early ordovician conodonts as well as cephalopods of the northern xichuan shelf in the southern part of eqm belonged to the south china province, while the cambrian trilobites and the early ordovician conodonts of the southern xichuan shelf belonged to the south china province with some elements of the north china province

    在寒武紀至中奧陶世早期，東秦嶺北部二郎坪海槽的寒武紀放射蟲和早奧陶世牙形石與東秦嶺南部浙川陸棚北部的寒武紀三葉蟲、早奧陶世牙形石和頭足類屬華南生物省，而浙川陸棚南部的寒武紀三葉蟲和早奧陶世牙形石屬于華南生物省，兼有華北生物省分子。
  4. Conodont fauna of late permian to early triassic in leping area, jiangxi province conodont fauna of late permian to early triassic in leping area, jiangxi province

    江西樂平地區晚二疊世-早三疊世的牙形石動物群
  5. Mei shi - long, 1991. middle and late cambrian conodont and trilobite biostratigraphy in wanxian, hebei. unpublished ph. d thesis of peking university

    武桂春， 2003 .魯西地區晚寒武世牙形石.北京大學博士研究生學位論文
  6. The hypothesis that conodonts are vertebrates has been supported by the evidence of the microstructural, topological and developmental homology of hard tissues between conodonts and vertebrates

    牙形動物是脊椎動物的假說已經有牙形動物和脊椎動物之間微觀構造的拓撲學的以及發育學的同源性的證據。
  7. The pteridophyta fauna includes 3 genara and 6 species ( including 5 unnamed species ), the graptolite fauna includes 3 genara and 4 species, the conodont fauna includes 10 genara and 17 species and the radiolarian fauna includes 12 genara and 28 species

    鑒定后發現，植物共計3屬6種（其中包括5個未定種） ，筆石計有3屬4種，牙形石計有10屬17種，放射蟲計有12屬28種。
  8. Ch. 2 biostratigraphy features, distribution and assemblage of three group fossils from many of the 7 geological setions, including conodont, coral and foraminifera fossils, have been comprehensively discussed. and a series of fossil assemblages can be recognized

    生物地層研究綜合各剖面上獲得的古生物資料，按牙形刺、珊瑚和有孔蟲化石等三大類論述了它們的特徵、分佈和組合特點，進而在魯班石地區劃分建立了牙形刺生物化石組合帶。
  9. The author ultimately achieves the following goals : 1. studied the nongba section, and correlated many sedimentary information and pteridophyta, graptolite, conodont and radiolaria etc. palaeontology fossils. study on palaeontology paleontology fossils of nongba section is carried out

    筆者最終取得的研究成果如下： 1 、對弄巴剖面進行了詳細的剖面測制工作，收集了大量沉積學方面的資料及一批植物、筆石、牙形石、和放射蟲等古生物化石。
  10. There are 25 genera and 47 species of conodont, 4 genera and 6 species of coral and some foraminifera. ch. 4 biostratigraphical regions based on the study on the conodont, coral and foraminifera fossils in research area, it was discovered that the biota features are resemble to the south china. so a conclusion can be drawn that the research area and south china belong to the same biogeographical region

    生物地層分區本文通過對牙形刺、蜒類、珊瑚等化石的對比研究，發現研究區的生物群特徵與華南區生物群相近，這表明在該區早、晚石炭世與華南區及東古特提斯區同屬一個生物地理區系。
  11. The conodont fauna of late permian to early triassic from yangou section in leping area, jiangxi province was discussed in this paper. all of the conodont individuals founded in this section were listed in a figure. according to the distribution of the important conodont elements, this section was divided into three conodont zones from the upper permian to the lower triassic

    討論了贛中樂平地區沿溝剖面上二疊統至下三疊統地層的牙形石動物群，列出了牙形石的各個形態屬種在地層中的分佈及其數量變化。根據特徵牙形石分子的地層分佈，將該段地層自下而上劃分為3個牙形石帶，分別是：
  12. On our spherical earth each segment delineates a lune called a time zone.

    在我們這第一個球形的地球上，被劃成月牙形的每一個等分稱為一個時區。
  13. The front of the copper palace terrace has the sun and moon seven star ensigns, the copper ensign is the empty sun and moon above, the ensign side is wolf tooth form, insets 28 constellations, it is a great dipper in the center

    銅殿平臺前豎有日月七星旗，銅旗上方是鏤空日月，旗邊狼牙形，一周? 28星宿，中間為北斗七星。
  14. Euconodont ; vertebrate ; dentine ; comparative histology

    真牙形石脊椎動物牙本質比較組織學
  15. The study object in this paper is a lunate caudal fin imitating tuna - tail with the mode combined swaying and yawing in uniform flow which is incompressible and inviscid

    本文的研究對象是類似於金槍魚尾鰭的一個推進裝置，它是一個月牙形的尾鰭。
  16. From this compare, we can know that the lunate fin has higher efficiency than the rectangle fin

    為研究尾鰭的幾何形狀對水動力性能的影響，本論文選取了矩形翼和月牙形翼進行比較。
  17. Fluff. or their skirt behind, placket unhooked. glimpses of the moon

    要麼就是她們的裙子腰身後邊有個鉤子開了，露出一彎月牙形88 。
  18. Stub metric trapezoidal screw threads ; thread profiles

    米制短牙梯形螺紋.螺紋牙形
  19. He ate off the crescent of water biscuit he had been nibbling and, hungered, made ready to nibble the biscuit in his other hand

    他把啃成月牙形的薄脆餅干吃掉，還覺得餓，正準備再去啃拿在另一隻手裡的餅干。
  20. Figure 7 : tail or crescent bond is the shape of the thermosonic bond on the substrate ( ball bond is on dimensions are shown in the box to the right of the figure

    月牙形焊接（熱超聲焊的末端）的尺寸和形狀直接與引線直徑和毛細管的幾何形狀有關。
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