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  endemic genera
     There are 12 endemic genera of the seed plant that they are Cyclocarya, Tetrapanax, Dysosma,Sinopanax, Barthea, Hayataella, Hilliella, Kudoacanthus, Whytockia, Bostrychanthera, Ampelocalamus and Gelidocalamus on disjunction between Taiwan and Chinese land.
     通过对台湾产的12个中国种子植物特有属即青钱柳属Cyclocarya,通脱木属Tetrapanax,华参属Sinopanax,八角莲属Dysosma,棱果花属Barthea,棱果茜属Hayataella,银脉爵床属Kudoacanthus,异叶苣苔属Whytockia,毛药花属Bostrychanthera,泡果荠属Hilliella,悬竹属Ampelocalamus.
短句来源
     They include 20 endemic genera and 261 endemic species to China.
     中国特有属20属,中国特有种261种。
短句来源
     The gymnospermous flora of Jiangxi Province comprises 7 families,22 genera and 32 species(including 1 endemic family,5 endemic genera and 20 endemic species),accounting for 58.3%,53.66% and 13.75% of corresponding taxa in China.
     江西裸子植物自然分布7科22属32种1变种(其中中国特有科1个为银杏科,特有属有银杏属、金钱松属、杉木属、水松属、白豆杉属等5个,特有种有银杏、华东黄杉、长苞铁杉、金钱松、水松等20种),分别占全国58.3%、53.66%、13.75%。
短句来源
     Pseudotaxus chienii (Cheng) Cheng is one of endemic genera of gymnosperms in our country, h is dioecious.
     白豆杉Pseudotaxus chienii(Cheng)Cheng是我国裸子植物特有属之一,雌雄异株。
短句来源
     (4) It has 30 genera of Chinese endemic genera,30 species of rare and endangered plants and 16 species provincial protected plants of Shaanxi.
     (4)有中国种子植物特有属 30 属,国家级保护的稀有濒危植物 30 种,陕西省省级保护植物 16 种。
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  endemic genus
     The number of typical family is 7.There are 5 genera of the Chinese endemic genus consisting of 6 species.
     表征科有 7科 ,中国特有属 5属 6种 ;
短句来源
     There were totally 27 genus 31 species of Chinese endemic genus of plants,among which 12 genus 12 species of onespecies genus,9 genus 10 species of oligospermous genus,and 6 genus 9 species of pleiospermous genus existed. 
     中国特有属植物共计27属31种,其中单种属12属12种,少种属9属10种,多种属6属9种。
短句来源
     (3) Endemic phenomena are rather obvious. There are 2 Chinese endemic genus and 30 Chinese endemic species.
     (3)特有现象明显:有2属为中国特有属,30种为中国特有种;
短句来源
     l. ,the polyploid frequency are 55. 6% -70. 4%. 2. Most of the neopolyploidscorrelated always with endemic taxa (included endemic genus,endemic subgenus and endemic species)in alpine periglacial area.
     4000-5200m以上的高山冰缘地区,多倍体频率达55.6%-70.4%.(2)高山冰缘地区新多倍体较多,并且与青藏高原上特有的植物类群(特有属、亚属或特有种)相关联。
短句来源
     Plant biodiversity in Maijishan scenic regions has been systematically studied. The result indicated that: there are 2 458 species in 976 genus of 232 families,among which 29 are China endemic genus,31 species are endangered plants.
     对麦积山风景区植物多样性进行了系统研究,结果表明,景区共有各类植物2 458种,隶属232科976属,其中中国特有属29属,珍稀濒危保护植物31种;
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  exclusive genera
     There are 43 exclusive genera(including 5 cultivated varieties) which are as much as 35% of all genera in the area, and belongs to 35 families (25.74% of all),57 species and varieties (including 6 cultivated varieties,3.14% of all).
     白水江自然保护区有中国种子植物特有属43个(含栽培5个),占保护区总属数的5.29%。 它们分别属于35科(占25.74%),含57种及变种(包括栽培6种,占3.14%)。
短句来源
     Exclusive genera and species of Chinese seed plants in Baishujiang National Reservation of Gansu Province
     甘肃白水江国家级自然保护区中国种子植物特有属
短句来源
  endemic genera to china
     These endemic genera to China of Spermatophyte distributed over the lower and middle mountains. 6 genera in the lower mountain and 39 genera in the middle one , were taken the proportion of 13.3 and 87.6 percent to the overall genera plants respectively.
     本区的中国特有属植物主要分布在低山和中山,其中分布在低山的有6属,占总属数的13.3% ,分布在中山的有39属,占总属数的86.7%。
短句来源
     THE ENDEMIC GENERA TO CHINA OF THE SPERMATOPHYTIC FLORA FROM WULINGSHAN REGION
     武陵山地区种子植物区系中的中国特有属
     On endemic genera to China of spermatophytic flora from Mt. Wulingshan region
     武陵山地区种子植物区系中的中国特有属研究
短句来源
     The Zhutoujian Mountainous Region is rich in Pantropic genera, but the dominant genera is North Temperate, and all of the wild trees of endemic genera to China are deciduous, sothe flora of Zhutoujian Mountainous Region is biased towards North Temperate.
     本区含有丰富的泛热带属,但仍以北温带成分占优势,且中国特有属中的野生木本属全是落叶乔木或灌木,表明本区植物区系的性质偏重于北温带性质。
短句来源
     The endemic genera to China in Taiwan are very close to the southwest and the middle of China; it may result from the move of plants from southwest to east in Tertiary and Quaternary.
     台湾特有属与西南、华中地区联系紧密 ,可能与第三纪、第四纪时西南植物向东移动有关
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      endemic genera
    The present paper analyzed 239 endemic genera in 67 families in the flora of seed plants in China.
          
    In gymnosperms, all endemic genera are relicts of the Arctic-Tertiary flora, having earlier evolutionary history, and can be traced back to the Cretaceous or to the Jurassic and even earlier.
          
    In angiosperms, the endemic genera are mostly relicts, and are represented in all lineages in the "Eight-Class System of Classification of Angiosperms", and endemism can be found in almost every evolutionary stage of extant angiosperms.
          
    Among these are included the two endemic genera Rhinonicteris and Macroderma.
          
    The Cuban endemic genera Ariadne, Mazaea, Acunaeanthus, Phyllomelia (Rondeletieae), and Eosanthe (Rubiaceae)
          
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      endemic genus
    Dipteronia is an endemic genus to China and includes only two species, Dipteronia sinensis and D.
          
    The giant size, mature stage of the sutural elements, and shape variation in respect to ontogenetic development extend the definition of this endemic genus.
          
    Reef coral reproduction in the Abrolhos Reef Complex, Brazil: the endemic genus Mussismilia
          
    Six of the octopodid species belonged to the genus Pareledone, illustrating the extensive radiation of this endemic genus within the Southern Ocean.
          
    (Cnidaria, Hydrozoa, Sertulariidae), the first truly endemic genus of Antarctic bent
          
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    Based on the statistical analysis of families, genera and species and comparison of related regions, the flora of Peking has been preliminarily analized by present authors in following aspects. 1. The elements of Peking flora. (1) Statistical analysis of femilies, genera and species. a) According to the enumeration of "The Peking Flora" the vascular plants of Peking are belonging to 153 fatuities, 751 genera and 1025 species. b) Analysis of major families. Among Angiosperms 10 leading families are taken for...

    Based on the statistical analysis of families, genera and species and comparison of related regions, the flora of Peking has been preliminarily analized by present authors in following aspects. 1. The elements of Peking flora. (1) Statistical analysis of femilies, genera and species. a) According to the enumeration of "The Peking Flora" the vascular plants of Peking are belonging to 153 fatuities, 751 genera and 1025 species. b) Analysis of major families. Among Angiosperms 10 leading families are taken for accounting percentage of their number of species as follows: Compositae, 10% Gramineae, 9% Leguminosae, 6% Rosaceae, 6% Liliaceae, 4% Cyperaceae, 4% Umbelliferae, 3.8% Ranunculaceae, 3.6% Cruciferae, 2% Caryophyllaceae, 2% c) Statistics of ligneous plants. Woody plants exclusive of the cultivated ones there are 45 families, 96 genera and 199 species; that is about 29% to the total number of vascular plants. (2) The endemics: The endemics are not strictly restricted to the Peking area, they are also generally found in North China. Accooding to the records and specimens collected there are about 7 spp. which may be considered as endemics, such as Clematis acerifolia Maxim. in Paihuashan and Shangfangshan; Cnidium Smithii (Wolff) W. T. Wang in Paihuashan and Yangjaping) Ligusticum Wawrae Wolff in Chiehtai Sze of Mentougou. Besides, there are about 25 spp. which are distributed correspondingly to the mountain range of North China, as Xanthoceras sorbifolia Bge., a monotypie genera occurs almost over North China. (3) The comparison between flora of major regions in Peking: In order to define the floristie characters of different regions of Peking, the authors select Potou, Paihuashan, Kingshan, Shangfangshan, Tancheh Sze and Haitien as 6 major points to make some comparison. According to thedistribution of woody plants in different regions an index of similarity is obtained by calculation and comparison. From Table (1) it shows that the flora of hilly region is more similar to that of the plain (index number=0.75) , and that of Potou and Paihuashan is also closely related (0.77), but the fora of rugged mountainous regions and plain are quite different. Among the 6 regions, hence, there is difference not only between the abundance of spp., but also the composition concerned. (4) Comparison of Peking flora with adjacent regions. By means of the same procedure, the index of similarity shows that, firstly, the ligneous flora of Peking are more closely related to North-east China (0.7). Secondly, it also has intimate relation with the flora of Honan Province, but in the latter nu merous Mid-China elememts are interfused. Thirdly, there are some distinct differences between flora of Peking and Sonthern part of Kiangsu Province. Lastly, the Peking flora appears to have loose relation with flora of Shantung Province and its relation with loes plateau ia also concerned. As stated above, this material seems to have some value of reference as a criterion in dividing the North China flora into provinces and snb-provinces. (5) Monotypic genera: Among the 10 monotypic genera in Peking flora recorded by Bunge (1833) only 4 are recognized as really monotypic at present, they are Xanthoceras, Oresttrophe, Hernistepta, Anemarrhena. (6) The transitional characters of elements of Peking flora: Due to its geographical and geological situation Peking flora has its European-Sibiria elements and Northeast China dements as the southern border, and on the contrary, some elements of tropical origin meet their north bonder just within this area. 2. Origin of Peking flora and its division. By the analysis stated above, it shows that Peking flora is practically as a part of North China flora. In Peking flora there are numerous elements as the relics of Tertiary flora, meanwhile*some migrating elements from other regions are also present, especially in plain. Elements of tropical origin as components of Peking flora indicate that they were either as remnants of tropical climate during geological time or as migrants after glaciation. For the furfher division of Peking flora, extensive work should be done to give a real prospect. It is difficult to define those limitations at present. However, it is evident to note that flora of rugged mountainous region, low hilly rigion and plain are very different, flora of western part and eastern part of rugged mountainous region are also quite unlike; this seems as an useful reference for floristic division of Peking area.

    一、北京的植物区系成分 1.科、属、种的统计和分析。 (1) 区系统计:根据“北京植物志”记载,北京共有维管束植物153科、75属、1025种。 (2) 主要科的分析;被子植物中10个主要科依次为: 菊科(Compositae),10%禾本科(Gramineae),9%豆科(Leguminosae),6%蔷薇科(Rosaceae),6%百合科(Liliaceae),4%莎草科(Cyperaceae),4%繖形科(Umbelliferae),3.8%毛茛科(Ranunculaceae),3.6%十字花科(Cruciferae),2%石竹科(Caryophyllaceae),2% (3) 木本植物统计:共有自生木本植物45科、96属、199种,豹占维管束植物的总数的19%,属的总数的13%弱。 2.特有植物:北京特有植物多与华北区系共有,根据标本与记载可以作为北京特有种的共7—9种,如槭叶铁线莲(Clematis acerifolia Maxim.)产于百花山、上方山,北京蛇床(cnidium Smithii(Wolff)W.T.Wang)特产于百花山、杨家坪,北京当归(Ligusticum Wawrae Wol...

    一、北京的植物区系成分 1.科、属、种的统计和分析。 (1) 区系统计:根据“北京植物志”记载,北京共有维管束植物153科、75属、1025种。 (2) 主要科的分析;被子植物中10个主要科依次为: 菊科(Compositae),10%禾本科(Gramineae),9%豆科(Leguminosae),6%蔷薇科(Rosaceae),6%百合科(Liliaceae),4%莎草科(Cyperaceae),4%繖形科(Umbelliferae),3.8%毛茛科(Ranunculaceae),3.6%十字花科(Cruciferae),2%石竹科(Caryophyllaceae),2% (3) 木本植物统计:共有自生木本植物45科、96属、199种,豹占维管束植物的总数的19%,属的总数的13%弱。 2.特有植物:北京特有植物多与华北区系共有,根据标本与记载可以作为北京特有种的共7—9种,如槭叶铁线莲(Clematis acerifolia Maxim.)产于百花山、上方山,北京蛇床(cnidium Smithii(Wolff)W.T.Wang)特产于百花山、杨家坪,北京当归(Ligusticum Wawrae Wolff)特产于门头沟的戒台寺,此外与华北共有的特有种约20余种,如文冠果(Xanthoceras sorbifolia Bge.)。 3.北京市各主要地区植物区系的比较,为了确定北京各地区区系特点,选择坡头、百花山、金山、上方山、潭柘寺和海淀区进行了区系统计,并根据木本植物的分布求出各地区之间的相似性的指标,结果表明低山区与平原区的区系最为亲近(0.75以上);坡头和百花山之间的关系也很紧密(0.77),而深山区与平原区的区系有显著的区别。区系统计方面,6个地区不但种的丰富程度和主要科的比重各有不同,种类成分也有差異。 4.北京地区与邻近地区植物区系的比较:根据北京木本植物区系与东北、山东、泰山、河南、苏南等地区的木本植物相似性指标可以看出,北京区系与东北区系的相似性最大(0.7),并指出很多华北成分与东北南部共通。次为河南(0.67),但河南南部有大量华中成分侵入,形成显著的区别,而和苏南以及山东半岛区系的差别比较明显。此外,指出北京区系与山东区系的关系较为疏远,也指出了北京区系与黄土高原区系的联系,这些材料对划分华北区系中省和亚省的范围有一定参考价值。 5.单种属:1883年Bunge描述的10个单种属尚有4种是单种属,即独根草属(Oresitrophe)、文冠果属(Xanthoceras)、泥胡菜属(Hamistepta)和知母属(Anemarrhena)。 6.北京植物区系的过渡性:北京地区处于华北植物省的边缘,成为欧洲——西伯利亚植物区系和我国东北地区区系分布的南界,而是热带超缘科属分布的北界,后者共28科,约30属以上。二、关于区系超源和区划根据以上分析可以看出北京植物区系实际上是华北植物区系的一部分,很多特有种和华北区是共同的,表明北京区系的形成和发展与华北及东北南部区系形成和发展是一致的。北京区系及华北区系中既有大量的第三纪植物区系的残遗,也有不少迁移而来的区系成分,在平原低山区更为显著。不少是有热带亲缘科属及其中华北特有属的存在说明可能有部分植物是在地史上的热带气候下产生而残留至今,或是冰期后重新迁移而来的。在区系区划方面,很多调查工作还待进行,尚难确定各小区的界限。但从北京各地区的自然地理条件、区系特点和植被特点的比较来看,深山区和平原低山丘陵区的差别显著,东部深山区和西部深山区有所不同,平原区和低山区也有一定的差别,又各有一定的特有种,都可作为区系区划的参考。

    The present paper deals with the embryogeny of Cathaya argyrophylla Chun et Kuang, a new conifer discovered in China in 1958. The material used for study was collected in 1960 and 1962 in type locality, Hua-Ping Forest Region, Lungsheng Hsien, Kwangsi Province, China.

    银杉属(Cathaya Chun et Kuang)是近年来在我国发现的又一个松柏类特有属。本文描述银杉从原胚到成熟胚的发育过程。根据胚胎学资料来看,银杉的胚胎发育与松属最接近:原胚由4层细胞组成,每层有4个细胞;裂生多胚现象是普遍的,一个受精卵在胚柄伸长并形成2个胚管细胞时分别形成4个幼胚;后期胚胎发育和成熟胚的结构基本上与松属一致。银杉的莲座细胞不再分裂,没有看到莲座胚的形成,而松属的莲座层细胞往往分裂形成莲座胚,因此,银杉幼胚的数目一般较松属的为少。此外,银杉的胚细胞分裂较松属的稍晚。根据我们对银杉胚胎发育的研究,与Erdtman研究花粉的结论是一致的,银杉与松属最接近。但与Яценко-Хмелевский和Будкевич根据银杉木材的研究所得的结论不同,他们认为银杉与云杉或黄杉接近。我们认为胚胎学的资料是值得引起注意的。

    The present paper deals with the description of a new species of the freshwater crabs collected from various localities of South Anhwei.Type specimens are deposited in the department of biology of Shanghai Normal University.The diagnosis of the new species is given below. Sinopotamon Jixiense,sp nov. Holotype:1 ,Allotype:1 ♀,paratype:6 11♀♀,Jixi,Anhwei, Oct.4—8,1977;1.,1♀,Ninguo,Anhwei,Oct.12,1977. Diagnosis:Length of carapace 17—32mm ,18—23mm (♀);breadth 21—40mm,22—28mm(♀).Carapace surface flattened,grooves...

    The present paper deals with the description of a new species of the freshwater crabs collected from various localities of South Anhwei.Type specimens are deposited in the department of biology of Shanghai Normal University.The diagnosis of the new species is given below. Sinopotamon Jixiense,sp nov. Holotype:1 ,Allotype:1 ♀,paratype:6 11♀♀,Jixi,Anhwei, Oct.4—8,1977;1.,1♀,Ninguo,Anhwei,Oct.12,1977. Diagnosis:Length of carapace 17—32mm ,18—23mm (♀);breadth 21—40mm,22—28mm(♀).Carapace surface flattened,grooves deep.With 5—8 granulated teeth at the outer edge of the extra—orbitat tooth,antero— lateral teeth 12—20,Short and blunt,The first abdominal appendage of the male is directed towards the dorsal,its last segment slender,with slightly separated end,dorsal lobe triangular,ventral lobe protruded.

    华溪蟹科(Sinopotamidae Bott 1970)共包括3属,其中华溪蟹属(SinopotamonBott 1967)为我国特有属。长江华溪蟹(S.Yangtsekiense Bott 1967)为此属中在皖南分布最广,数量最大的一种,对肺吸虫的传播和防治关系最大。本文除对长江华溪蟹进行补充描述外,还报导了一个新种;绩溪华溪蟹(S.Jexiense sp.nov.)。

     
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