introduced plants 中文意思是什麼
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Many alien plants have become introduced by highly circuitous routes.
許多外來植物是通過極其迂迴曲折的道路引進的。 -
Plant endemism is the key problem in floristic study. analysis of endemism in a flora has significant implications in demonstrating floristic richness and diversity, the relationship between plants and their environment, and also in conserving biodiversity of the flora. in view of the situation that most of the past studies on endemism were qualitative, this study is the first tentative approach to the introduction of quantitative indices to the analysis of floristic endemism, with an purpose to push the study of endemism from qualitative to quantitative. four quantitative indices are introduced, i. e. level of endemism ( l ), coefficient of endemism ( c ), degree of endemism ( d ) and general index of endemism ( a ). mathematical formulae have been given to each of the above indices and explanations for them have been presented, and the scope of their use in floristic studies has been delimited and exemplified in this paper. the result shows that they are of good applicability. the proposed indices embody full information of plant systematics and plant geography. with the aid of qualitative analysis, the application of the proposed indices will improve the comparability and precision of endemism study in floristics
過去有關特有現象的研究主要限於定性的分析，可比性和精確性較差.該文嘗試引入特有現象的定量化指標，以推動特有現象的分析研究從定性水平向定量水平邁進.所引入的4種定量化指標分別是：特有水平、特有系數、特有度以及特有綜合指數.對每種量化指標都給出了數學表達式，說明了其區系學意義，例證和界定了這些指標在植物區系分析中的應用，結果表明，它們有良好的適用性.這些指標充分地包含了植物系統學和植物區系學的信息.結合定性分析，這些指標的應用將增強植物區系研究的可比性，使植物區系特有現象的分析達到更精確的水平 -
Cactaceae ( cacti ) a large family of succulent xerophytic dicotyledonous plants, found mainly in warm dry parts of the americas ; some species, notably the prickly pears ( opuntia ), have been introduced to the mediterranean and australia
仙人掌科：一類肉質的旱生雙子葉植物，主要分佈於美洲的炎熱乾燥的區域，仙人掌果（仙人掌屬）被引入地中海以及澳大利亞。 -
This gene, artificially put under the control of camv 35s, was introduced into tobacco with the aid of agrobacterium, and the transgenic plants obtained were identified by gus staining, pcr and southern blot analysis
將arge與組成型啟動子camv35s相連，構建植物表達載體，通過農桿菌介導轉化煙草。經過gus染色、 pcr及southern鑒定獲得了轉基因植株。 -
The results showed that 345 species, belonging to 179 genera, 77 families were distributed in this area, taking a ratio of 71. 3 %, 45. 1 % and 42. 4 % in chinese oil plants respectively, 11 families including euphorbiaceae, lauraceae, ulmaceae, rutaceae, magnoliaceae, celastraceae, leguminosae, rosaceae, cruiferae, compositae and caprifoliaceae were dominant families that had 10 or more species. 66 species of important oil plants were briefly introduced
結果表明，該區油脂植物共有77科179屬345種，佔全國油脂植物科屬種的71 . 3 % 、 45 . 1 % 、 42 . 4 % ，含10種以上的科有大戟科、樟科、榆科、蕓香科、木蘭科、衛矛科、豆科、薔薇科、十字花科、菊科和忍冬科等11個科，為該地區油脂植物的優勢類群。 -
The results showed that the survive ratio of these introduced plants was 68 %, and most of them were suitable to live in xiamen botanical garden
引種的澤米鐵科植物大都適應于引種試驗地的生長，適應性表現良好。 -
Species of vascular plants, both native and introduced. various conservation measures have transformed the formerly bare hillsides and slopes into areas with trees of local and introduced species
本港在採取各項自然護理措施后，以往是不毛之地的山坡，現已種植了本地及外來樹木。 -
The great progress in screening, acting way and action mechanism of the acaricidal plants against mites have been introduced
摘要對近年來國內外植物性殺蟎劑在殺蟎植物、殺蟎作用方式和作用機理方面的研究進行了綜述。 -
This paper introduced the natural disturbutiun, ancient tree and famous tree as well as the introduction situation of plants belong to banyans in fujian province, there were 30 species of plants belong to banyans in fujian province, 40 species ( including garden cultural species ) of plants belong to banyans were introduced
摘要介紹了福建省榕屬植物的自然分佈、古樹名木及榕屬植物引種情況，目前福建省有榕屬植物30種左右，引種榕屬植近40種（包括園藝栽培品種） 。 -
At the quality supervision monitoring center for oil plants and manufactured products under the ministry of agriculture, li peiwu, director of the center and a research fellow, introduced the monitoring technologies for the quality of aanola, especially the quick tester of top - quality rapes. this tester can test the glucosinolate and erucic acid contents at a fast speed, and it is characterized by a low charge for testing costs
在農業部油料及製品質量監督監測中心，中心主任李培武研究員向學員介紹了雙低油菜的質量監測技術，並重點介紹了該中心的優質油菜速測儀，該儀器可以快速測定硫甙和芥酸含量，並且具有測試費用低的特點。 -
The application and production method of d - bormeol were introduced. the extraction of d - bormeol from plants was emphasized. the possibility of chemical synthesis and biosynthesis of d - bormeol were also discussed
摘要介紹天然右旋龍腦的應用，並重點介紹從植物中提取右旋龍腦的進展，討論了化學法和生物法合成生產右旋龍腦的可行性。 -
Gamma scanning and neutron backscatter techniques, which are widely used in petrochemical plants, are briefly introduced
摘要對射線掃描技術和中子背散射技術的基本原理及其在石油化工裝置中的主要應用進行了簡要介紹。 -
The technology and methods of the study on molecular mechanism of cytoplasm male sterility ( cms ) are introduced in regard to mitochondrial genome, mitochondrial gene, mitochondrial rna, mitochondrial protein, transformed plants and abortion of pollen
摘要本文從線粒體基因組、線粒體基因、線粒體轉錄rna 、線粒體蛋白、轉基因植物以及花粉敗育機理六個方面詳細介紹了植物細胞質雄性不育分子生物學研究的技術和方法。 -
The technologies for producing the synthetic - carotene chemically and natural product based on c14 - aldehyde and vitamin a are introduced, including the method of extraction from natural plants, silkworm feces, salt alga and the method of microbe ferment
摘要綜述了-胡蘿卜素的生產方法，介紹了以c14醛為原料和以維生素a為原料的化學合成品生產方法和天然品的生產方法，包括從天然植物、蠶糞、鹽藻中提取和微生物發酵法。 -
According to a database of plot sampling on exotic harmful plants combined with the characteristics of exotic harmful plants, we introduced a new method in selecting and setting plots to determine the harmfulness of such plants
摘要在外來有害植物試點調查的基礎上，結合外來有害植物的特點，介紹了外來有害植物種群測定的樣地選擇和設置方法。 -
In this thesis on the basis of study of electric power enterprises, especially the generation plants, research is carried on the realistic significance, the configuration of the budget management system and its effectiveness as well as the design and evaluation of the budget mode. such studies are built on the reform background of electric industry of china where there will be a separation of generation plants and the transmission grids, and competition is introduced for the power entering the transmission lines
本文以電力企業特別是發電企業為立足點，以電力體制改革后「廠網分開，競價上網」為背景，從電力體制改革的目標和實際出發，運用預算管理的基本理論和基本方法，並結合對江蘇諫壁發電廠、大唐股份有限公司陡河發電廠的實地調研，就發電企業的預算管理的現實意義、預算管理體系的構造及其有效實施等問題進行研究，對其預算管理模式做出設計與評價。 -
On the local front, on january 1, we introduced euro iv petrol standards for our vehicles, and in august, we introduced a new policy of imposing emissions caps in the specified process licences for power plants. we also completed a programme of retrofitting about 36 600 heavy diesel vehicles with emission reduction devices as well as another programme which provided incentives to owners to replace 2 521 diesel light buses with lpg light buses
在本港方面，我們於2005年1月1日實施歐盟四期車用汽油規格，其後並於8月推行新政策，在發電廠的指明工序牌照訂明排放上限，另亦完成重型柴油車輛改裝計劃，促使本港約36 600輛重型車輛安裝廢氣消減裝置以及推行另一套計劃，向2 521輛柴油公共小巴的車主提供經濟誘因，鼓勵他們改用石油氣小巴。 -
Power plants converse elementary energy into electric power most of which are coal - burned power plants with a efficiency from 25 percent to 40 percent because of technology limit. as competition mechanism has been introduced into electric market and the identity of electric production, cost competition become the essential competition in electric market at present
發電廠是將一次能源轉換成二次能源的企業，在我國，絕大多數電能是由火電廠生產的，總體能耗成本十分高，受熱機技術的限制，燃料的化學能轉換成電能的效率不高，僅在25 ? 40之間。 -
( 2 ) deletions of four different lengths were conducted using pcr amplification with the information of sequence of pdf 1. 2 gene promoter. these mutated promoters were fused to the gus reporter gene and introduced into tobacco plants. the results of gus activity driven by these different constructs showed that the promoter sequence between positions - 300 and - 243 ( containing a gcc box and a g box - like sequence ) was an essential ja - responsive element region to activate the expression of gus reporter gene, and the - 300 bp position was defined as the boundary of the minimal functional promoter in response to ja signaling
（ 2 ）對該啟動子的5 』端進行不同長度的缺失突變，突變的啟動子與gus構建的融合基因在煙草中受meja誘導的瞬時表達結果表明，該啟動子中- 300 - 243bp區域（有一個gccbox和一個gbox - likesequence ）是其應答meja處理所必須的區域，並將- 300bp作為該啟動子應答ja信號的最小區域的邊界位置。 -
The invention of the visible light microscope late in the 16th century introduced a previously unknown realm of single - celled plants and animals
16世紀後期，可視光學顯微鏡的發明使人類第一次觀察到了單細胞動植物的世界。
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