species characteristic 中文意思是什麼

species characteristic 解釋
種類特徵
  • species : n. 〈sing. , pl. 〉1. 種類;【生物學】(物)種。2. 【邏輯學】種。3. 【原子能】核素。4. 【法律】形式。5. 【宗教】聖餐物。
  • characteristic : adj 有特性的;表示…特性的,…特有的。 Japan s characteristic art 日本特有的藝術。n 特性,特徵,性...
  1. Anti - keratin auto antibody ( ak auto ab ) is accepted generally as a significant component of natural auto antibody ( naa ) which is found in human as well as vertebrate, and is of characteristic of polyreactivity, low avidity, extensive connectivity and shorting of specificity to the species

    天然自身抗體( naa )廣泛存在於人和脊椎動物體內,具有多反應性、親和力低、締和性廣及種屬特異性差的特點。
  2. Three methods, namely, community species composition similarity analysis, community composition similarity analysis, and community characteristic similarity analysis, were employed to study the similarity of insect pest - natural enemy communities of three rice types ( early rice, middle - season rice and late rice ) and their three development stages ( tilling stage, boot stage and milk stage ) in the yangtze - huaihe region of anhui province

    摘要採用群落種組成相似性分析、群落組成相似性分析和群落特徵相似性分析3種方法,研究了安徽江淮地區早稻、中稻、晚稻3種稻型及分蘗、孕穗、乳熟3個生育期害蟲天敵群落的相似性。
  3. Constant companions are added to the character taxa to form the " characteristic species combination " for associations and higher taxa

    恆有伴生種加特徵種構成群叢或更高級分類單位的「特徵種組合」 。
  4. This is so because climbing plants are likely to encounter intensive - changing environmental condition during their growth ( especially change of illumination ). secondly, there is a large proportion ( 30 - 40 % ) of climbing plants which belong to dioecism, and hence a gap between male and female plants on morphology, biological characteristic, economic value and so on. this dissertation focuses on herbaceous climbing plants, perennial or annual species such as dioecious trchosahthes kirilowii maxin and dioscorea opposita thumb, and monoecious luffa cylindrical ( l ) roem, it attempts to discover how climbing plants adapted to various environments and the mechanism of adaptation from aspects of physiological and reproductive ecologies at present, due to overuse of chlorofluorocarbons ( cfcs ), the ozonosphere has become thinner and thinner, and the ultraviolet - b ( uv - b ) radiation has increased considerably

    而攀援植物本身是一類理想的植物行為生態學研究材料:第一,攀緣植物由於受攀緣能力和支柱木資源的限制,在生長過程中通常要遇到強烈變化的環境條件(特別是光照) ;第二,攀緣植物中具有較高比例的雌雄異株類型,通常佔地區攀緣植物種類的30 40左右,不同性別的植物在形態學及生物學特性、經濟價值等方面存在一定的差距,因此,本文以雌雄異株攀緣植物栝樓( trchosahtheskirilowiimaxim ) (葫蘆科多年生草質藤本植物)和山藥( dioscoreaoppositathunb ) (薯蕷科薯蕷屬植物) 、雌雄同株異花攀緣植物絲瓜[ luffacylindrical ( l ) roem ] (葫蘆科一年生攀緣草本植物)為材料,試圖從生理生態學及生殖生態學角度揭示攀援植物如何適應不同生境及其機理。
  5. In the warm period, the aquatic bivalvia was well - developed, and the gastropod fauna was obviously prosperous and characteristic by large amount of the aquatic species. the alternative appearance of both cold and the warm mollascan assemblage tpyes reflects the features of the quaternary climate changes in this area

    在冷期因氣候乾燥,環境中水量減少,腹足類化石以陸生肺螺類最為發育;在暖期水生雙殼類較為發育,腹足類群明顯繁盛,以水生種類的大量出現為特徵。
  6. 2. isolation and cloning of mouse embryonic germ cells of icr species primordial germ cells ( pgc ) were isolation from 8. 5 - 15. 5 dpc ( days post coitum ) embryos. eg cell lines with the characteristic of murine es cell line were established and continuously cultured to 6th passage

    Icr小鼠eg細胞的分離克隆研究本試驗以icr品系小鼠胚胎8 . 5 15 . 5dpcpgc為材料,經傳代培養,獲得能連續而穩定傳至6代的,具有胚胎幹細胞諸多特性的eg細胞系。
  7. The phylogenetic relationship of cordyceps based on the its sequence analysis of rdna showed all of the species in this experiment have been divided into two groups by molecular systematic classification, group one including the species with perithecia wholly immersed, and group two including those with perithecia not or half immersed. it means the position of perithecia in the stroma is very important characteristic

    在埋生類群中,子囊殼斜埋生的種,即屬于新蟲草亞屬的沫蟬蟲草和雙頭蟲草,以及蟲草亞屬的下垂蟲草都被歸到一個類群之中,垂直埋生的類型被歸到另一類群中,在埋生類群中,除大團囊蟲草和c 。
  8. In subgroup, there are no differences between specimens of same species from different places for instance c. militaris or a ittle differences for example c. sobolifera. according to above analysis a new classified criterion proposed is that in classification of the genus cordyceps whether the perithecia are immersed or not should be the first classified characteristic, which is quite different from the classic ones. at the same time based on the investigations, isolation and identification of cordyceps spp. and other entomogenous fungi collected from more than 10 different ecological places or natural preserves in southwest china

    對西南地區10多個不同生態區或自然保護區的蟲草及其他的蟲生真菌進行了調查和分離研究,發現了3個蟲草新種和4個半知菌新種,既茂蘭蟲草( cordycepsmaolanensis ) ,貴州蟲草( c . guizhouensis ) ,擬布里班克蟲草( c . brittlebanksoides ) ,蜻蜒擬青黴( paecilomycesodonatae ) ,雙梭隔梭孢( septofusidiumbifusisporum ) ,香棒彎頸霉( tolypocladiumbarnesii ) ,蟬白僵菌( beauviriasobolifer ) 。
  9. Constant companions are added to the character taxa to form the "characteristic species combination" for associations and higher taxa.

    恆有伴生種加特徵種構成群叢或更高級分類單位的「特徵種組合」。
  10. Based on the reseaching of lycoris leaf micro - morphology characters by sem scanning, light microscope viewing and using paraffin method in the article, we try to provide the proofs of experiment and the efffective characer indexes to discuss the system and evolution of the lycoris. we find these microscope characers through reseach are as follows : the arrangement type, density and the length of stoma ; the shape and length of the epidermal cells ; the ridge of epidermis ; the transverse shape of leaf ; the number of the vascular bundle ; the style of vessel arrangement of vascular bundle in the middle vein ; the layers of palisade tissue ; the ratio of the thicken of palisade tissue to that of spongy tissue ; the angle number of the middle leaf ; the type of ventilating cavity etc. these characters are different from those of species in lycoris, meanwhile these characters are similar to those of some species in lycoris. so these characters can be used as the character indexes for differentiating species and reseaching systematic evolution of lycoris ; we can divide lycoris into two subgenus by these characteristic indexes : the species of one subgenus are l. aurea ( l " her. ) herb, chinensis traub, l. caldweuii traub, l. anhuiensis y. hsu et q. j. fan, l. longituba y. hsu et q. j. fan ; the species of another subgenu s are l. houdyshelii traub, l. albiflora koidz.,

    研究結果表明:葉表皮的氣孔排列方式、長度、長寬比,脊的明顯與否,葉表皮上的顆粒紋飾的多少、大小,葉表皮細胞長度、長寬比、垂周壁形狀,上部葉柵欄組織細胞層數、葉的維管束數、葉中脈導管組成數目,氣腔類型,葉的脊部遠軸面的角數,葉緣的形狀等這些特徵在種間存在差異,同時,在有些種之間又有相似性;因此,這些特徵既可以作為區分種的證據,又是研究石蒜屬植物系統演化的性狀指標,根據這些性狀指標,可以將石蒜屬植物大致分為兩個亞屬:一是忽地笑、中國石蒜、短蕊石蒜、安徽石蒜、長筒石蒜,二是江蘇石蒜、乳白石蒜、石蒜、玫瑰石蒜、稻草石蒜;在兩個亞屬中其中有些種如忽地笑、長筒石蒜、中國石蒜的親緣關系則更近些。
  11. The following contents were mainly studied : ( 1 ) aspect, structure as well as characteristic of species composition between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 2 ) species diversity, species abundance and species evenness between fragmental evergreen broadleaved forests and contin. us evergreen broadleaved forest ; ( 3 ) plant floristic compositions at family and genus levels between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 4 ) life form between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 5 ) microclimate factor ( sun radiation, temperature, wind velocity, humidity ) in different level pattern ( open, edge and interior ) between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 6 ) the relations between environment and soil factors as well as species diversity of forest community between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest

    主要研究以下內容: ( 1 )片斷和連續常綠闊葉林的外貌、結構和物種組成特徵; ( 2 )片斷和連續常綠闊葉林的物種多樣性、豐富度和均勻性; ( 3 )片斷和連續常綠闊葉林的科( ? )屬水平的植物區系成分; ( 4 )片斷和連續常綠闊葉林生活型組成; ( 5 )在不同的水平梯度格局上(林外、林緣和林內) ,片斷和連續常綠闊葉林的小氣候要素(光照、溫度、風速、濕度等) ; ( 6 )片斷和連續常綠闊葉林的環境和土壤因子,與群落的物種多樣性之間的關系。實驗結果表明: ( 1 )各片斷森林的外貌特點基本上和連續森林一致。
  12. Studies of fossil teeth and bones from human species that lived millions of years ago indicate that meat did not play a significant part in diet, and that at least one in twenty met their end in a predator ' s jaws. the findings support the idea that the communication skills and group living that are characteristic of modern homo sapiens evolved as defensive measures against lions, hyenas, crocodiles and eagles

    據泰晤士報2月20日報道,通過對數百萬年前的遠古人類的牙齒及骨骼化石的研究,美國華盛頓大學的羅伯特-瑟斯曼博士發現,肉類食物在遠古人類的日常飲食當中並不佔據重要位置相反,他們中至少有二十分之一的人喪命于食肉動物的口中。
  13. Euploidy the normal state in which an organism ' s chromosome number is an exact multiple of the haploid number characteristic of the species

    整倍性:正常狀態下,生物體染色體數是此種生物單倍體數目整數倍的現象被稱為整倍性。
  14. The most preeminent characteristic of finger jointing flake is that it is the outcome of wood s comprehensive utilization. its appearance may be of different color or texture of same tree species, or the finger - jointing shape in length direction of different flake length, or the blended finger - jointing of different tree species

    指接木皮最大的特色就是他是木材綜合利用的產物,其外觀可以是同樹種不同顏色或花紋或不同長度木皮的長度方向的指接形態,也可以是不同樹種的木皮混合指接形態。
  15. This species is always susceptible to iron deficiency but symptoms are characteristic of many grasses

    玉米缺鐵:這類作物總是易受鐵缺乏的影響,但其癥狀卻是許多禾本科植物特有的。
  16. The habitats for moving about of great bustard are hillocks on grassland. and they prefer to move about on the valleies of grassland during their breeding season. there are 4 main vegetation characteristic factors that determine the nest - site selection, the factors are the vegetation canopy, vegetation density, food and the height of plant. the great bustard selects the areas with higher vegetation canopy, vegetation density, plant species and insect quantity. most height of plants are below 20cm, but we also found they move about in tall grass occasionally

    大鴇繁殖期活動棲息地為波狀起伏的草原漫崗地,多喜歡活動在海拔為170 300m左右,四周高、中間凹的漫崗凹地中。決定大鴇繁殖期棲息地選擇的主要植被特徵因子共有4個,分別為植被蓋度因子、植被密度因子、食物因子和植物高度因子。大鴇多選擇在植被蓋度和密度較大、植物種類和昆蟲數量較多及多數植物高度在20cm以下,但又不乏高草的地方活動。
  17. By making a systematic study on botanical and morpholigical to the 6 species, a few characteristics have been summarized for identification. with the method of tissue clearing and scanning electron microscope, the characteristic of oil cell of leaves and the micromorpholocal characteristic of fruit surface were found to be quite well differentiated and to have taxonomic value. by investigating the source of fructus listeae in sichuan, guizhou and hunan province, we found that the fruits of l. mollis hemsl are the main current species

    對上述6種木姜子屬藥用植物進行了較系統的形態學研究:包括對植物形態、藥材性狀及顯微特徵的比較,總結出種間鑒別特徵;採用組織透明法對葉片中油細胞的形態及分佈進行研究發現, 6種植物葉片油細胞的分佈差異較大,種間鑒別特徵顯著;首次採用掃描電子顯微鏡對木姜子屬植物果實的微形態進行比較研究,發現不同種的果皮紋飾具有明顯差別,從而為種間鑒別提供了微形態學的證據。
  18. Moreover, a systematic arrangement on the genus in henan province and artificial key to the species have been made. characteristic description have been given to all the taxone and followed by the distribution and habitat. some taxone have also been discussed briefly

    此外,還對河南槭屬植物作出系統排列,編制出分類檢索表,對各類群分別作了特徵描述,記載了產地和分佈,並對部分種作了簡單的討論。
  19. In this paper, the characteristic of ecological distribution of the order aulonoraphidinales has been discussed. the result showed that the characteristic influenced by regional climate and situation is not notable, but the influence from located water body is relatively obvious, the number and quantity of those species is richer in temporary water body, seep water beside lake and marsh, yet less in brook, river, lake and other water body

    發現管殼縫目硅藻的分佈受區域氣候、地理位置等的影響並不顯著,而受所處水體的小環境的影響較為明顯,在臨時性水體以及湖邊滲出水、沼澤中管殼縫目硅藻的種類多,數量也多;而在溪流、河水、湖水等水體中種類和數量都很少。
  20. In the first step, quantitative and qualitative characteristic of soils influenced by soil microalgal were studied in this step. in this study, four different algal ( chroococcus, chlorococcum, navicula and chalmydomonas ) and one algal mixture, which were formed by the above four algal species, were cultivated in two different mediums ( soil and double distilled water ), under regular illumination or dark condition respectively. we estimated the environmental ph, the microorganism biomass ( not including algal ), and the organic matter content very 20 culture days and estimated the available phosphorus after 60 culture days. we got the results by making graphs and extreme - difference analysis after 0, 20

    實驗以土壤(經過高溫燒制除去微生物和土壤有機質的影響)和水(重蒸水)為兩種不同的基質,在基質中接種五種相同重量的土壤微藻藻液(立方色球藻、土生綠球藻、舟形藻、沙角衣藻以及由四種藻種形成的混合藻液) ,分別進行見光和和黑暗培養,在0天、 20天、 40天和60天時,測定環境ph值、微生物量(不包括藻類) 、有機質含量,進行極差分析和圖形比較。
分享友人