系
- 与 系 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The sequences of segments of the trnL intron from 29 species and trnL-trnF IGS from 21 species of Magnoliaceae were analyzed. The results from the strict consensus trees were consistent with the former systems ① several species within the genera Michelia were homologious;② the subgenera Yulania was extremely homologious and much far from subgenera Magnolia;③ the species within Manglietia were highly conservative.
通过木兰科29个种的trnL基因内含子的525个碱基序列及21个种的trnL-trnF基因间隔区的370个碱基序列测定和分析,构建的严格一致性树建议:①含笑属为相对一致的单系类群;②玉兰亚属的几个种形成一个单系类群,与木兰亚属的几个种无共衍位点;③木莲属为个相对保守的类群,种间碱基差异很小。
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The flora belongs to the Yunnan Plateau Region of Sino-Himalayan Subkingdom, East Asiatic Kingdom in floristic regionalization.
因此,该植物区系在区划上仍属于东亚区中国-喜马拉雅植物亚区,云南高原地区,属于东亚植物区系的一部分。
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The study shows that the subsalt carbonate rocks of Cambrian in Tarim basin possess favorable exploration prospect, the favorable areas or zones are located in the main host belts of Tazhong uplift and its two sides, Yingmaili and Lunnan areas in Tabei uplift and southern structural belt of Bachu swell, based on the source-reservoir-cap rock assemblage, structural development, sedimentary environment, oil-gas shows and the petroleum accumulation characteristics of the two basins.
根据寒武系的生储盖组合、构造发育、沉积环境以及油气显示情况,并对比东西伯利亚盆地油气田油气成藏的特点认为,塔里木盆地寒武系盐下具有良好的勘探前景,有利勘探区带主要为塔中主垒带及其两侧、塔北隆起的英买力及轮南地区、巴楚低凸起的南部构造带。
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It is reliable method to construct subseries cell lines of bladder neoplasm strains with improved invasive experiment,and the subseries cell lines can be used as cell model for studies of bladder carcinoma′s invasiveness and metastasis.
运用改良的侵袭实验筛选膀胱癌细胞系的高侵袭力亚系的方法是可靠的,建立的高侵袭力亚系细胞为今后对膀胱癌侵袭及转移的研究提供了较为可靠的细胞模型。
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Theoretical analysis for the surface properties of coal-pyrite and mass susceptibilities of different kinds of coal-pyrite crystal forms and coats are studied.
对煤系黄铁矿的表面特性进行了理论分析,并测定了煤及煤系黄铁矿的磁化率。
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There are not differences in the meiosis of both A lines and B lines , and between CMS of hot and sweet pepper.
椒细胞质雄性不育系金A 和保持系金B 减数分裂和雄配子发生的整个过程。
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The Essay is focused on the new election system of Japanese House of Representatives' to find out the roles of election system in Japan democratic Progress. To perfect the electoral system, Japan had mended its election system of the House of Representatives 14 times since 1889 till 1994. In 1993, some political issues, included the reform of election system, eventually led Prime Minister Miyazawa Kiichi to resign and ended the Liberal Democratic Party' 38-year-old reign, as well as the so-call"55 system(the party system of 1955)".During the past century, Japan has tried small, medium and large sized district systems, currently "First past the post with Proportional Representation System", to constitute a fair and better system which is expected to improve Japan's political environments and make voters trust the politics.
中文摘要本论文系以日本众议院新选举制度为研究之核心,探讨日本在其民主化过程中,选举制度所扮演之角色,日本为让选举制度更臻完善,自一八八九年起至一九九四年止,共计针对其众议院选举制度进行了十四次之修改,甚至於一九九三年,因选举制度等政治议题之改革,导致自由民主党之宫泽喜一内阁下台,结束该党长达三十八年之长期执政,日本政治上所谓「五五体制」亦至此宣告结束,过去百余年来日本先后实施过小选举区制、中选举区制、大选举区制及目前实施之小选举区比例代表并立制,其主要目的系为建构一套更公正、公平、优质之选举制度,让其政治更清明,让选民对政治更有信心。
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In this research , by using of genomic in situ hybridization , random amplified polymorphism DNA technology and three specific SCAR molecular markers, the author analyzed wheat hybrid generations carrying the desired genes that were resistant to take-all, BYDV and/or powdery mildew, and developed some alien chromosome addition and translocation lines that were important in breeding practice, and some specific molecular markers that could be applied in marker-assisted selection.
本研究运用GISH、RAPD和SCAR分析方法,对抗全蚀病、黄矮病和兼抗黄矮病白粉病的小麦杂交后代材料进行分析,获得了一些对育种实践有重要意义的易位系、异附加系材料和几个可用于辅助育种的特异性分子标记。
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There was big difference among the 22 different materials in the disease resistance. Translocation lines Pm97033 showed the highest resistance in reaction than others. The percentage of diseased root and severed level were 11.3% and 5.4%; substitution lines Wan7107 showed medium resistance to the fungus, the percentage of diseased root and severity level were 21.4% and 10.6%; F5 generation of common wheat with Till showed higher resistance to take-all fungus than the PS progenies of common wheat with Aegilops tauschii or the other common wheat varieties.
菌饼+菌粒法对宁春4号的致病力明显高于菌饼法和菌粒法,其病根率、严重度和病茎率分别达到100.0%,57.3%和28.6%。22个遗传背景不同的小麦材料间抗病性差异较大,其中小麦-簇毛麦易位系Pm97033的抗病性最强,病根率和严重度分别为11.3%和5.4%;代换系Wan7107次之,病根率和严重度分别为21.4%和10.6%;硬粒小麦-簇毛麦双二倍体(TH1)与普通小麦品种杂交后代的抗病性强于粗山羊草与普通小麦品种杂交后代。
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Among them,73 genera and 36 families,occupies 80.23% of the total number of the genera and 78.26% of that of the families, were tropically and subtropically distributed genera and families, the other 18 genera and 4 families,merely occupied 19.77% of the total number of the genera and 8.70% of that of the families,were temperately distributed genera and families,which suggested that the variation of the altitude might affect the plant composition of communities in some degree.
热带性成分科、属与温带性成分科、属各有36科、73属和4科、18属,分别占样地种子植物科、属总数的78.26%、80.23%和8.70%、19.77%,表明热带性区系成分在群落中的优势地位,同时一定数量的温带成分的入侵,反映出海拔高度变化在一定程度上对植物区系组成的影响,表明鼎湖山山地常绿阔叶林具有向中亚热带常绿阔叶林过渡的特点。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。