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zonation     
相关语句
  分带
     the perpendicular zonation is Cu→Zn→Sn→Ag→Pb→Mo→In→Bi→As(from the lower to the upper).
     垂直分带序列(从下至上):Cu→Zn→Sn→Ag→Pb→Mo→In→Bi→As;
短句来源
     The deposit is characterized by vertical Mn(Fe)-Ag,Pb,Zn-Cu,Pb,Zn zonation.
     该矿床从上至下具Mn(Fe)-Ag,Pb,Zn-Cu,Pb,Zn的垂直分带规律。
短句来源
     The horizontal zonation of metallic element(from the inner to the outer) is Cu-Bi→Ag→Sn→Pb-Mn→Cd;
     金属元素水平分带(从内向外):Cu、Bi→Ag→Sn→Pb、Mn→Cd;
短句来源
     From far source to near source,with the mineralizing zonation of Au,Ag Au,Cu,Ag Cu,Au,Pb,Zn Cu(Mo,Au),the ore forming temperatures change from low to high; while the sulphide contents vary from poor to abundant.

     从远源至近源,成矿分带为Au、AgAu、Cu、AgCu、Au、Pb、ZnCu、(Mo、Au),成矿温度从低温至高温变化,硫化物从贫硫化物向富硫化物变化.
短句来源
     Geochemical mapping shows that some geochemical parameters, such as Sn, W, REE, Zr, Th, and Rb, exhibit a rough spatial zonation, with the most evolved samples located in the southeastern part of the pluton, suggesting that the most probable target area of rare-metal deposits may be in the southeastern area, i.e., between 116°8′E~116°10′E and 25°29′N~25°32′N.
     地球化学填图显示了元素在空间上的分带变化,指出与红山花岗岩有关的成矿作用最可能发生在岩体的东南端,即116°8′E~116°10′E和25°29′N~25°32′N的区域。
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  区划
     FCJ-GIS GEODYNAMIC ZONATION MODEL AND ITS APPLICATION TO RISK EVALUATION OF SLOPE HAZARDS
     FCJ-GIS动力区划模型及其在斜坡灾害危险性评价中的应用
短句来源
     THE THEORY AND METHOD OF RISK ZONATION OF GEO-HAZARD
     地质灾害风险区划理论与方法
短句来源
     Earthquake Resistant Engineering and Application of Seismic Zonation Map of China
     中国地震区划图应用和工程抗震
短句来源
     After introduction of the concept and significance of the division of marine functional zonation, an analysis of the development and change in four aspects including zone-dividing principle, status of law, hierarchy and classification system is put forth;
     在介绍海洋功能区划的概念及其重要意义的基础上,分析了区划原则、区划法律地位、区划体系和分类体系等方面的发展与变化,指出了为适应新情况和解决新问题,需要对海洋功能区划方法加以改进,并提出了改进的主要环节和思路。
短句来源
     Zonation of desert and sandy desertification land in North China based on remote sensing technology
     基于遥感技术的中国北方沙漠及沙质荒漠化土地区划研究
短句来源
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  分带性
     The southern zonation is comprised of Cu-Pb-Zn belt,silver-bearing Pb-Zn belt and Pb-Ag belt at the Nanshan area from Cu(Au) belt at Jiuqu to south,which form distinct mineral association and evolution sequence.
     矿区南部的分带性较完整,从九区Cu(Au)矿化带往南依次为银山区Cu-Pb-Zn矿化带、含银Pb-Zn矿化带和南山区Pb-Ag矿化带,形成了相应的矿物共生组合及演化序列。
短句来源
     4. stratification and zonation of tectonics.
     (4)构造类型的分布具有分层分带性
短句来源
     Meanwhile, it is stated that the secondary fissures are possessed with certain zonation longitudinally, distributing mainly in the burial of 2 350 m to 2 880 m.
     同时认为次生孔隙在纵向上具有一定的分带性 ,其主要分布在埋深 2 35 0m~ 2 880m。
短句来源
     It has been shown that:( 1 ) In mire soils contents of N,P,K,Na,Zn and Co are relatively rich, and that of Ca,Mg,Fe,Ni and Al are relatively poor. The vertical and horizontal distributions of elements in the mire soils arc shown as stratification and zonation, respectively.
     研究表明:(1)沼泽土壤中,N、P、K、Na、Zn、Co等元素的含量相对较丰富,Ca、Mg、Fe、Ni、Al等元素的含量相对较贫乏,而且这些元素在垂直分布上呈分层性、水平分布上呈分带性等特征;
短句来源
     The distribution of heavy mineral assemblage type and its changes are zonation in Reservoir Group Chang 6 in Anwu Area of Ordos Basin.
     鄂尔多斯盆地安五地区长6油层组重矿物组合类型的分布及其变化具有分带性 ,由北东向南西方向依次分布次稳定重矿物带、次稳定重矿物 +稳定矿物带和稳定矿物带。
短句来源
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  成带现象
     2.The zonation of vegetations in Xizang changes from the southeast to the northwest as follows:forest—meadow—steppe—desert.
     2.西藏植被的成带现象自东南向西北变化如下:森林—草甸—草原—荒漠。
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  zonation
Some mechanisms of mineralogical and geochemical differentiation, which contribute to the facies zonation, are revealed.
      
A pronounced vertical zonation is revealed in the spatial succession of different macrobenthos communities.
      
Original schemes of faunistic zonation of the North Pacific are given.
      
Fractal features and morphological differences between periodic infiltration and diffusion metasomatic zonation
      
The choice of reference soils should be made with due account for the provinces of the soil-geographical (or soil-ecological) zonation as territories characterized by similar environmental conditions and typical soil cover patterns.
      
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Root development of the intact or excised embryos of Pinus koraiensis Sieb. et Zucc., exhibited discrepant morphological differentiation under experimental condition. That development of the root enclosed in intact megagametophyte grown in the sterile culture medium without sugar, although it showed more rapid elongation, essentially resembled that of the soil-grown seedlings. However, morphological variations existed in the root growth of the excised embryo after one week's culture. It manifested particularly...

Root development of the intact or excised embryos of Pinus koraiensis Sieb. et Zucc., exhibited discrepant morphological differentiation under experimental condition. That development of the root enclosed in intact megagametophyte grown in the sterile culture medium without sugar, although it showed more rapid elongation, essentially resembled that of the soil-grown seedlings. However, morphological variations existed in the root growth of the excised embryo after one week's culture. It manifested particularly in the development of the coleorhiza-like structure. As the root elongated, it first appeared as a reddish mass covering the root cap. Gradually this tissue mass became loosened and separated from the root cap. Finally it was torn and pushed aside by the elongated root. In the further growth of excised embryos, seven to eight layers of loose tissue which arose from the subepidermal cells were developed around the root tip. Later, the surface layer assumed the appearance of rhizoids and was subsequently shed. During further extention of the first root, zonation of the root apex became inconspicuous. The meristem became reduced in extent; only a layer of initial cells existed between the root cap and the hypocotyl. Meanwhile the root cap became reduced to only a few cell layers, some of which eventually degenerated. After six weeks in culture, the meristematic tissues of some of the root apexes eventually became parenchymatous and maturation of short tracheids extended up to 100--200μ from the apex. Ultimately root ceased to elongate and became senile.

离体的与带有雌配子体的紅松(Pinus koraiensis Sieb.et Zucc.)胚胎,在人工培养下,其根部的生长可表現出各种形态解剖上的分化。普通带有雌配子体的成熟胚的下胚軸基部,除了生长特別迅速以外,其余都比較正常,內部的分化大致也与一般自然生长下的松属幼苗相似。但是完全离体的胚胎,在人工培养一星期后,即可显出各种变异,其中胚根鞘的結构表現得特別显著。这种在胚根伸展时多形成紅褐色的一团,复盖在最前端;里面逐漸与根冠分离,外部变为相当疏松。不久在初生根伸长时即被穿破或推向一边。而初生根的前端周围則又由皮层細胞逐漸轉变成7—8层細胞寬的疏松結构层;在其外面不断的成条状剝落。离体胚初生根继續向前伸长时,根端內的分区逐漸变为不明显;分生組織減少,原始细胞成单层細胞,位在下胚軸的基部。同时根端的根冠細胞退化,只剩了几层細胞;有的不久完全消失。培养六星期后,有些根端的分生組織,逐渐轉变为薄壁组織;分散的管胞十分靠近根的前端。最后根端的组织分化衰退而趋向死亡。

In the reseaches on the anatomical structure of an apex during itsontogeny of Brassica pekinensis Rupr. we kave observed that in thegermination-phase an apex of B. pekinensis Rupr. is a tunica-corpusstructuee which changes gradually into cytohistological zonation stru-cture in the seedling phase. In the rosette-phase an apex is a typicalcytohistological zonation structure which consist of five zones: tunica;submantle; central-mother cell zone; combium-like zone and rib-meristemzone. However, the...

In the reseaches on the anatomical structure of an apex during itsontogeny of Brassica pekinensis Rupr. we kave observed that in thegermination-phase an apex of B. pekinensis Rupr. is a tunica-corpusstructuee which changes gradually into cytohistological zonation stru-cture in the seedling phase. In the rosette-phase an apex is a typicalcytohistological zonation structure which consist of five zones: tunica;submantle; central-mother cell zone; combium-like zone and rib-meristemzone. However, the apex in the early phase of cabbaging becomes areproductive apex but which is dormant and has no combium-like zonein its structure. In a late-phase of cabbaging the resting reproductiveapices begin to elongate somewhat and differentiat obviously floralprimordia, and active dividing cells in an apical meristem constitute apartern of reversed cone. From previous mention we can come to a con-clusion: the apical structure changes with different phase during onto-geny of the plant. Each structure of an apex bears close relationship tothe activities of the apex. During the rosette period a cambium-like zoneand rib-meristem zone play an important role in growth in thickness of anapex and in moving a number of the produced leaves primordia towardouter periphery. Changes of an anatomical structure occur earlier than anew morphological characteristics as a type of metabolism changes. Altho-ugh an apical structure in cabbaging-phase has changed into that of a re-productive apex, but as the reproductive apex is dormant, the nutrimentscan be applicated to growth of the bulb-leaves. Therefor, we held thatcabbaging bear relation with differentiation of the floral buds.

对白菜(Brassica campestris ssp.pekinensis(Brassica Pekinensis Rupr.)个体发育过程中顶端解剖结构的观察发现:白菜顶端在胚胎期及萌发期是原套——原体结构;幼苗期逐渐变成分区结构。由五区组成:原套、亚外套、中央母细胞区、形成层状细胞区和肋状分生组织区。结球早期苗端变成生殖顶端,但呈潜伏状态;这种顶端结构中,没有形成层状细胞区。结球后期,潜伏的生殖顶端略有延长并分化明显的花原基;顶端分生组织中有活跃分裂能力的细胞构成一个倒园锥体的形状。以上观察说明:顶端结构是随个体发育的不同时期而变化的,每种结构和顶端活动有着密切的关系;莲座期形成层状细胞区和肋状分生组织区的配合活动,使顶端直径增加,并把已形成的叶原基移向外围。当新陈代谢类型发生变化的时候,内部解剖构造的变化比新的外貌形态特征出现得早。虽然结球期顶端变成生殖顶端,但是由于这时的生殖端呈潜伏状态,营养物质可用于球叶的生长。因此,我们认为:结球和花端分化有着密切的关系。

1.The vegetation of the Xizang plateau is different from the general vegetation of“horizontal zones”and it is also different from that of“vertical zones”in mountainous country.It belongs to the vegetation of vertical zones of the“peneplain pattern”.Therefore,it may be called the vegetation of“plateau zones”. 2.The zonation of vegetations in Xizang changes from the southeast to the northwest as follows:forest—meadow—steppe—desert.The formation of these plateau zones is determined mainly by the elevating...

1.The vegetation of the Xizang plateau is different from the general vegetation of“horizontal zones”and it is also different from that of“vertical zones”in mountainous country.It belongs to the vegetation of vertical zones of the“peneplain pattern”.Therefore,it may be called the vegetation of“plateau zones”. 2.The zonation of vegetations in Xizang changes from the southeast to the northwest as follows:forest—meadow—steppe—desert.The formation of these plateau zones is determined mainly by the elevating of the plateau to such a great extent that the particular regime of air circulation was obtained.The wet southwest monsoon is the fundemental factor for the development of the tropical and subtropical mountain forests in southeast part of Xizang.The plane of the plateau is under the control of the westerly wind circulation and“Qinghai-Xizang”high pressure.Under the in- fluence of such continental climatic conditions on the plateau,the high-cold meadow, steppe and desert vegetations are formed.

1.西藏高原的植被不同于一般的“水平地带”植被,也不同于山地的“垂直带”植被。它是属于“准平原式”的垂直带植被,可称之为“高原地带”植被。2.西藏植被的成带现象自东南向西北变化如下:森林—草甸—草原—荒漠。这些高原地带性的形成主要取决于高原巨大幅度的隆升及其所引起的特殊的大气环流状况。潮湿的西南季风乃是西藏东南部热带和亚热带山地森林发育的基本因素。高原面处在西风环流和“青藏高压”控制下,在这种大陆性高原的气候条件下,形成了高寒草甸、草原和荒漠植被。

 
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