牙積石 的英文怎麼說
中文拼音 [yájīdàn]
牙積石
英文
odontolith-
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。The immediate host siliceous rocks of typical deposits ( jinya, gaolong ) are of hydrothermal sedimentary origin. gold ore bodies are layer - like and generally concordant with their host rocks. abundant relict synsedimentary fabrics are preserved in the ores
典型礦床(金牙、高龍)中的含礦硅質巖屬熱水沉積巖,礦體形態主要為與地層整合的層狀和似層狀,礦石具有大量同生沉積的標型組構。2s ( th / u4u and 227th / 2x " th dating on two mammal fossil teeth gave age ranging from 85 to 139 ka, which evidence the stratigraphic order between the capping flowstone and the underlying fossil - bearing deposits and support to the age assignment of older than ca. aoo ka to die hominid fossil teeth
伴生的貘牙化石和鹿牙化石的二種鈾系法年代范圍為85 - 139ka ,表明該地點含化石堆積與表層鈣板間無地層倒序現象,支持人牙化石大於100ka的結論。Of an angle of over 70 degrees are ever - present while the south - west side is blanket - ed in snow all the year round. halfway up the mountain, ravines abound and gulles crisscross. " rolling stone " and " wolf s fang " areas scattered with huge rocks from t
雪寶頂東北坡為70度以上的懸崖絕壁,西南坡終年積雪,山腰溝壑縱橫,通向頂峰之路又必經怪石崢嶸,險景叢生的滾石區和「狼牙區」 ,有較大的攀登難度,對登山探險者很有吸引力。The accumulation of dental plaque will cause periodontal diseases that contribute to bad breath
累積的牙石會導致牙周病,從而引致口臭。Now it is thought that two formations were formed in the same period from early cambrian to early ordovician and were deposited in different parts of sea basin on the northern edge of the north china platform, based on the acritarchs contained in these formations
通過對以上兩個組中疑源類化石進行研究,認為阿牙登組應從白雲鄂博群中分出,與腮林忽洞組一同劃歸早寒武世至早奧陶世的地層中,阿牙登組與腮林忽洞組為同一時期不同局限海盆的沉積,是早古生代華北地臺最北部邊緣的沉積產物。The road sweeping cleaning, enhancing sweeping frequency, asking for " seven - eight net, " that is no deposit, no litter ( pack ), the peel of debris - brick, sand, mud without water, without tanji stains, ground - graffiti was chaos posted, the road net, net wellhead groove, lower part of wall net, net - poles, tree point net, net roadside stone teeth, green belts, net, net garbage bin
在道路清掃保潔方面,提高清掃頻率,要求達到「七無八凈」 ,即無堆積物、無垃圾(包) 、無果皮紙屑、無磚瓦土石、無污泥積水、無痰跡污漬、地面無亂塗寫亂張貼,路面凈、溝井口凈、墻根凈、電桿根凈、樹穴凈、路邊石牙凈、綠化帶凈、果皮箱凈。Results the occlusion contact data and graph of wedge - shaped teeth defect had the features of trauma occlusion. 42. 97 % of them has the larger axial gradient degree, 96. 09 % of them has abration in different classes, 46. 29 % missing the front teeth and 57. 03 % missing the buccal teeth
方法採用臨床物理檢查和石膏模型測量,確定楔狀缺損牙軸傾度、磨損指數、牙缺失等指標;採用計算機圖像處理技術,自行編制軟體程式及硬體系統,測試被檢光(牙合)片,分析並提取楔狀缺損牙接觸(牙合)力、面積、接觸點(牙合)應力等資料和圖形信息。We have carried out th / u dating on intercalated calcite samples. the results show that the capping flowstone layer is of an age of 94 ka, and the second one 220 ka. the fossil - bearing deposits which are bracketed by the two flowstone layers should be of an age between 94 and 220 ka
新生碳酸鹽巖與骨化石的鈾系測年結果表明:該地點覆蓋含人牙化石堆積的表層鈣板在約94ka以前開始形成,堆積疊壓的鈣板年代為約220ka ,人牙化石的年代應介於兩者之間。分享友人