查询词典 Karst
- 与 Karst 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper, based on a detailed survey of geological heritages in Xinglong county and a classification, studies the features and genesis of geological heritages such as Wulingshan magma, karst, benthal black chimney.
对河北省兴隆县的地质遗迹进行了详细调查,在地质遗迹分类的基础上,对雾灵山岩体等岩石遗迹、岩溶洞穴等地质地貌遗迹、海底黑烟囱等地质构造遗迹的特征及成因进行了分析。
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For example, karst topography is very approach this mode. We not only discuss the effect relation of dipole field in the mediator, but also in the property of antenna. Imaginaries Bessel function is involved in the process of discussion. because it is very important to the result.
钻孔雷达一般使用偶极天线,所以对偶极天线辐射场正反演问题的研究是目前的当务之急,它直接影响着对钻孔雷达资料的正确解释,对进一步研究钻孔雷达天线的有关特性及钻孔雷达的研制起着非常关键的作用。
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The experiment was carried out to study the productivity and characteristic of four grasses in karst peak-cluster billabong, northwestern Guangxi.
在桂西北峰丛洼地研究了4种牧草的生产力大小和形成特点,结果表明:桂牧1号象草Pennisetum americanum×P。
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Several results have been achieved as followings: 1. The response of stable carbon isotope in karst cave system to surface climate and environment This index can distinguish origin forest from other vegetation, but cannot distinguish transitional eco-environment such as bosk, grassplot and rocky desertification.
洞穴系统稳定碳同位素对地表气候环境的响应通过对4个不同生境洞穴系统的研究,认为洞穴系统稳定碳同位素可以很好地将原始森林植被同其它植被类型区分开;但是不能很好地区分植被退化的过渡类型如灌丛、草坡以及石漠化等。
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The process of natural succession of restoring vegetation in central Guizhou after rocky desertification in Karst area was divided into the herbosa stage, the stage of herbosa-shrub, the stage of vine-shrub, the stage of subaltern tree forest and the climax stage.
黔中喀斯特地区石漠化后,植被恢复自然演替过程可分为草丛阶段、草灌阶段、藤刺灌丛阶段、次生乔林阶段和顶级群落阶段。
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The forest was characterized with phanerophyte evergreen plants with single-mesophyll-leathery leaves, which reflected the nature of tropical Karst mountainous seasonal rain forest.(2). Community succession was divided into five stages by using Cluster method, PCA method; the succesion stages include herbaceous stage, scrub-shrub stage, small tree stage, arbor stage and climax seasonal rain forest stage.(3). Based on similarity theory, succession sere was constructed with the community similarity equation formed.
结果表明:(1)森林群落在外貌上,以常绿高位芽、单叶、革质、中型叶植物为主,反映了热带岩溶山地季雨林的特点;(2)运用聚类分析、PCA排序等方法将群落演替阶段划分为草本群落阶段、灌丛阶段、小乔木阶段、乔林阶段、顶极季雨林阶段;(3)运用相似学原理,组建群落间相似度方程并以此方程构建了群落演替系列;(4)研究表明桂西南岩溶区生态系统健康受到严重胁迫。
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There are 58 species of 23 families have germinated in Beibei Karst area, these plants include 16 species of Gramineae and 8 species of Compositae.
北碚10个不同的样地共萌发植物58种,隶属23科。
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Is there a conjectural relationship between morphology and flow in karst?
它们是否存在互可测度的关系?
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North of the Cordillera is the karst country where the limestone has been acted upon by water to produce a series of small steep hills and deep holes, both conical in shape.
山脉的北部是岩溶地区,那里石灰石在水的作用下缔造了一系列陡峭的小山和深邃的洞穴,两者在形状上都呈圆锥形。
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The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme
主要的环境地质问题是:活动性断裂、地震带的地壳不稳定;崩塌、滑坡、泥石流及水土流失;地下岩溶塌陷、渗漏问题;基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害;盆地软土问题;软弱岩体、碎裂、风化岩体稳定性较差;高寒地带公路、铁路建设的冻土冻融灾害问题;煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题;工程切坡、施工弃土及水库、湖泊生态地质环境保护问题;航道险滩、暗礁问题;渠化工程、码头等库岸再造问题;以及机场建设中的不稳定地基及地下水腐蚀性问题;同时,随着大通道建设的实施和完成,城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合,都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果,滇西北、滇西南地区交通密度较低,交通工程对环境的影响程度较弱,是环境地质状况好的区域;有主要高原湖泊分布区的,包括昆明、个旧、文山的滇东南区域,环境地质状况较好;大姚、楚雄、篙明及会泽、昭通一镇雄的区域,即滇中北部中生界红层和滇东北岩溶区,环境地质状况中等;而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区,环境地质状况较差。云南国际大通道建设涉及全省区域,如何利用地质环境、实现可持续发展,就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面,提出了对策措施。最后,提出了建立国际大通道建设与环境地质良性关系的宏观建议。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?