查询词典 natural selection
- 与 natural selection 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Through systematic conclusions of site selection methods and complicated analysis of site selection influence factors and index, based on the newest research results of sanitary landfill site selection both at home and abroad, this thesis discusses the elementary principles of multi-objectives decision osculating value method, matter element analysis method and multi-objectives decision fuzzy optimization method, builds an open site selection index system.
本论文通过对已有选址方法的系统总结,基于对卫生填埋场选址影响因素和指标的综合分析,在借鉴国内外有关卫生填埋场选址的最新研究成果的基础上,从理论上阐述了适用于铁路垃圾卫生填埋场选址的多目标决策密切值法、物元决策分析法以及多目标决策模糊优选法的基本原理,建立了一个开放性的选址指标体系。
-
Natural selection was expected to work very slowly in forming new species, but given the effectiveness of artificial selection, he could "see no limit to the amount of change, to the beauty and infinite complexity of the coadaptations between all organic beings, one with another and with their physical conditions of life, which may be effected in the long course of time by nature's power of selection".
预计在形成新物种上,自然选择起效非常缓慢;但考虑到人工选择的有效性,他可以"设想到变化的数量是无限的,美丽是没有限度的;所有有机生命之间的互相适应的复杂性是无限的,彼此之间的相互适应以及它们生活状况之间的相互适应是无限复杂的,这些都可能在很长的时间里受到自然力量选择的影响"。
-
To promote the coordinated development of upstream, mid-stream, and downstream of the natural gas industrial chain and map Out national policies on natural gas industry; a. to encourage the users in urban gas. gas-fueled vehicles, and industrial gases; c. to build up a full range of natural gas supply security system; b. to allow the local governments to develop regional economy by supporting natural gas industry; f. to complete the price formation mechanism of natural gas by adjusting the prices at each link from upstream to downstream; e.
提出了6条具有可操作性与政策前瞻性的保持协调发展的策略:①促进天然气产业上中下游协调发展,制钉国家层面的天然气工业发展规划,培育以城市燃气、天然气汽车、工业用气为主导的天然气市场体系;②构建全方位的天然气供应安全保障体系;③地方政府大力支持天然气行业,促进区城经济发展;④抓住当前调价的良好时机,尽快建立天然气产业链各环节合理化的价格机制。
-
Important natural geological analogues are volcanic glass and meteoric glass(anal-ogues of solidified mass), clay minerals (natural analogues of backfill material), iron meteorite and copper deposits (natural analogues of waste containers), natural nuclear reactors, uranium deposits, iron deposits containing Th and REE and contact zones between igneous rocks and other rocks (natural geochemical analogues of HLW repository).
目前已有的地质类比研究对象主要有火山玻璃,陨石玻璃,粘土矿物,铁陨石,铜矿床,铀矿床,含含Th和REE的铁矿床,天然核反应堆和火成岩接触带等。
-
The method includes the following steps: getting specific amount of knitted or unknitted natural fiber and dipping the natural fiber in the aqueous solution of silane coupling agent for 1-100min, taking out and drying the natural fiber, thus producing natural fiber with modified surface; then pressing the polylactic acid into sheet in a plate vulcanization machine; disposing 2-10 polylactic acid sheets into a die and arranging one modified natural fiber sheet between every two polylactic acid sheets; pressing and molding the sheets; in this way totally biologically degradable polylactic acid composite material can be made.
该方法为:先取一定量的经过编织或未编织天然纤维,将其浸渍在偶联剂水溶液中1~100分钟后取出,经干燥后得到表面改性的天然纤维。然后,将聚乳酸在平板硫化机中压制成薄板;将2~10片聚乳酸薄板放在模具中,且每2片之间放置1片改性的天然纤维,然后模压成型,得到可完全生物降解聚乳酸复合材料。
-
Including high temperature for the pyrolysis of natural gas to produce carbon black and acetylene; steam reforming of natural gas or partial oxidation of natural gas, synthetic gas can be obtained; natural gas through chlorination, sulfide, nitrification, ammoniated oxide, oxidation can be obtained A N all kinds of derivatives; in the wet gas ethane, propane, butane and natural gas liquid condensate, and so on, the steam cracker or pyrolysis to produce ethylene, propylene and butadiene; dehydrogenation of butane oxidation or produce small Diene or acetic acid, methyl ethyl ketone, and maleic anhydride, and so on.
包括在高温下进行的天然气热裂解,主要生产乙炔和炭黑;天然气蒸汽转化或天然气的部分氧化,可制得合成气;天然气经过氯化、硫化、硝化、氨化氧化、氧化可制得甲烷的各种衍生物;湿性天然气中的乙烷、丙烷、丁烷和天然气凝析液等,经蒸汽裂解或热裂解可生产乙烯、丙烯和丁二烯;丁烷脱氢或氧化可生产丁二烯或醋酸、甲基乙基酮、顺丁烯二酸酐等。
-
Comparing the landscape types of 1995 with that of 2005, we find out that:①the natural arbors are decreasing, with patches more fragmentation, size more odds, shapes more complex;②the area of natural shrubberies is increasing, with patches less fragmentation, shapes more simple and formulary ,the size of patches more even;③the area of natural grasses is increasing, with patches less fragmentation, shapes of patches more odds;④the area of timbers is increasing, with patches more dominance in landscape, more connectivity;⑤the area of Eucalyptus increases, with patches less fragmentation, shapes of patches more complex , more convergence, more connectivity;⑥the area of orchards is increasing, more connectivity;⑦the patches of the rubber is becoming more assemble, more connectivity, more formulary;⑧the area of plowland increases;⑨the area of reservoirs, rivers and ponds increases, with patches more assemble;⑩the area of cities decreases, with patches more dispersing, with shape more complexthe area of countries increases, with patches less connectivity, more dispersing, with shape more complex; the patches of the rest lands are more dispersing, with shape more complex;(3)In the process of economic development in the upper reaches of the Changhuajiang river watershed, a series of the ecological environment problems have appeared because a lot of landscape function broke off, and the connection of human landscape with natural landscape decreased, which aroused by the fragmentation of natural and semi-nature landscapes increased, the stability of the landscape structure decreased, as well as stress of human disturbance, resource and environment upon the landscape increased gradually.
3昌化江上游流域在经济发展进程中,自然与半自然景观破碎度增加,自然景观结构稳定性下降,人为干扰、资源和环境对景观胁迫逐渐增大,中断了许多生态过程,导致城市等人文景观与自然景观连接度很差,产生了一系列的生态环境问题。
-
This article is mainly reviewed the history of the bankruptcy law of natural person, and saw about the bankruptcy law of natural person in the developed countries at present, then according to the situation of our country, analysed the legislation of the bankruptcy law of natural person in our country, and gave the advice of the design of the law. At last, the article analysed upbuilding correlative laws of the bankruptcy law of natural person. This article is about the bankruptcy law of natural person, and is mainly discussed from five parts.
本文对于自然人产破产制度的建立进行回顾,并对目前西方发达国家自然人破产制度进行考察,结合我国国情对在我国建立自然人破产制度进行分析,对建立该项制度提出有关程序及实体制度的设计,最后对建立自然人破产制度相关配套制度的建立进行了分析。
-
Between the flower fragrance of pure natural crystal necklace with crystal flower love between pure plant essential oils (dedicated to inter-pure natural crystal flower necklace of pure aromatic essential oils) is the Haizhu District of Guangzhou City Ying Ying firm introduced pure natural and pure crystal perfect combination of essential oils of the patented product has been registered in Beijing Intellectual Property Office set down between the flower fragrance of pure natural crystal necklace is from a variety of pure natural crystal, silver and platinum plating as well as the 925 made functional jewelry, It can be a variety of trickle-down between the crystal flower essential oils pure love, gorgeous appearance, style number and easy to use.
花间纯天然水晶香薰项链与花间水晶之恋纯植物精油(专门用于花间纯天然水晶香薰项链的纯植物精油)是广州市海珠区滢樱商行所推出的纯天然水晶与纯植物精油完美结合的专利产品,已在北京知识产权局注册在案,花间纯天然水晶香薰项链是由各种不同的纯天然水晶,以及925纯银镀白金所制成的功能性首饰,它可以随意滴入各种不同的花间水晶之恋纯植物精油,外观华丽,款式众多,使用方便。
-
As part of the disagreement about whether natural selection alone was sufficient to explain speciation, George Romanes coined the term neo-Darwinism to refer to the version of evolution advocated by Alfred Russel Wallace and August Weismann with its heavy dependence on natural selection.
是否单独自然选择就足以解释物种形成是争论的一部分;乔治·罗曼纳创造"新达尔文主义"一词,以代表阿尔弗雷德·罗素·华莱士和奥古斯特·魏斯曼所倡导的、强烈依赖自然选择的进化版本。
- 相关中文对照歌词
- A Natural Man
- Natural Disaster
- Natural Woman
- Natural High
- Keep It Natural
- Natural Gift
- Be Natural
- Only Natural
- Natural High
- Let Me Love You
- 推荐网络例句
-
I was up all night because I was in pain, she said.
我整夜,因为我在疼痛,她说。
-
A crow caws /craoks.
乌鸦叫。 51-论文网
-
It certainly hampers Estonia's efforts to counter Russian propaganda that portrays the country as a fascist hellhole.
这种行为肯定是阻碍了爱沙尼亚抵制俄罗斯宣传的种种努力-要知道俄罗斯将爱沙尼亚说成是一个到处都弥漫着法西斯主义的鬼地方。