conservation of number 中文意思是什麼

conservation of number 解釋
數量守恆
  • conservation : n. 1. 保存，維持（健康），保守；保護；保護森林[河道]（等）。2. 【物理學】守恆，不滅。adj. -al
  • of : OF ＝Old French 古法語。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. In the physical world there exist a number of conservation laws, some exact and some approximate.

    物理世界中存在著一些守恆定律，其中有些是嚴格的，有些是近似的。
  2. A number of conservation methods have been devised for waterlogged wood.

    已研究出許多種保養被水浸泡過的木頭的方法。
  3. The landscape around the rivers and streams has been severely modified, leaving little of the natural vegetation to buffer water flowing overland to the streams, further resulting in water pollution. the rivers themselves have also been severely modified with the construction of large number of dams and regulation works, said dr alan leung, senior conservation officer, wwf hong kong

    世界自然基金會香港分會高級環境保護主任梁士倫博士表示：據2003年一項研究發現，西江流域約八成原生森林已經消失，而河流鄰近地帶和溪澗亦經人類大幅改造，導致在河水暴漲時可用作緩沖區的天然植物大為減少。
  4. In the paper, we firstly acknowledge the characteristic of rainfall kinetic energy and runoff energy, current state and the development of erosion dynamic process by consulting a large number of domestic and foreign literature datum. on the basic, we systemically coordinated the eroded datum of runoff plots of soil and water conservation stations at xifeng, tianshui, suide, and chunhua et al

    本文首先在查閱了大量國內外文獻資料，全面了解降雨動能與徑流能量的特性及侵蝕動力過程等方面的研究現狀及最新進展的基礎上，系統整理了西峰、天水、綏德及淳化泥河溝等水土保持試驗站的徑流場侵蝕資料。
  5. Of the species, . characters of ecology, reproductive biology, genetic diversity, population genetic structure, endangering mechanisms, and sampling strategy have been studied in view of conservation biology. the results may be summarized as follows : by field investigation, we found that the localities recorded for four specimens of d. versipellis and d. pleiantha had disappeared, and most of the present populations are located in protected subforests. the distributional range of d. versipellis has also been reduced greatly, evidently, the number of present populations has decreased, the resources are reduced sharply, and the species are clearly endangered

    從保育生物學的角度，對八角蓮種群生態學和生物學特性、遺傳多樣性水平和遺傳結構、瀕危機制及保育取樣策略進行了研究，結果如下：通過野外調查發現，原標本記載的一些八角蓮和六角蓮種群已難以找到，該類群目前多分佈於自然保護區外圍次生林地帶，分佈范圍明顯縮小，現存群體的規模也明顯減少，資源量貧乏，物種處于瀕危狀況。
  6. However gluon can interact with other gluons directly. gluon can be. assimilated and emitted by other charged matter at any time and in any place. the number of gluon is not conservation, which shows that any gluon system is open and non - equilibrium

    然而膠子是可以直接和其它膠子相互作用的，能夠隨時隨地被其它帶色荷的物質（即，夸克或膠子或它們組合成的某種系統）所吸收和放射出來，膠子數不是一個守恆量。
  7. The following aspects are involved in this dissertation : 1 ) properties of convergence of the network model under the circumstance of few rooms, the prediction of the early production tally with the growth of the fire in building on the whole while the prediction becomes most fallacious when the rooms increase to a certain number, for instance, 9. the solution of the net mass flux, positive mass flux and negative mass flux is improved and then mass conservation is strictly maintained so that the prediction of the software become more credible and reliable

    本文主要涉及以下幾個方面: 1 ）軟體計算收斂性態在房間數目很少的情況下，軟體開發的前期成果能在總體上成功預測建築火災的發展過程，當房間數目增加到一定的數目（如9 ） ，軟體計算將出現劇烈振蕩的問題，預測結果極不理想。本文改進了軟體對凈質量流量、正、負質量流量的求解，保證了三者之間的嚴格守恆關系。經過改進，軟體的預測結果更可靠，更可信。
  8. There are a number of possible explanations for this, but the most likely ones are removal of nutrients, improved varieties, improved farming techniques, including better moisture conservation, weed control, crop rotations and timely planting date ; and improved pest control practices

    對此有一些可能的解釋，但較好的解釋是，因為養分被移走，使用了良種和先進的農作技術，包括更有效的保水、除草、作物輪作和適時播種，此外還有良好的害蟲防治技術。
  9. The charity the whale and dolphin conservation society wdcs said japan ' s whale meat stocks had doubled over the past 10 years as it increased the number of animals it killed every year, despite a global ban on commercial hunting

    捕鯨行為在全球已被禁止，但隨著日本每年捕殺鯨魚數目的增加，該國囤積的鯨肉數量已經在過去的10年裡翻了一番。
  10. Whether it will set up a dedicated department to protect and conserve trees in the territory, as the work currently shared among a number of government departments, with a view to stepping up efforts of greening promotion as well as carrying out the tree protection and conservation work and the relevant law enforcement actions more effectively

    會不會制定保護樹木的法例；若不會，原因是甚麼；及（三）會不會成立部門，專責處理現時由多個政府部門分擔保護及保育全港樹木的工作，以加強推廣綠化及更有效進行樹木保護、保育和有關的執法工作？
  11. In this paper, at first, the benefits of energy conservation, the fixed number of invested - reclaimed year and the rate of reclaiming were calculated with the conventional method - the tech - economy means for the two scwr projects which were heat pump model scwr system and jet pump model scwr system

    用傳統的技術經濟分析方法，對熱泵式蒸汽冷凝水回收系統、噴射泵式蒸汽冷凝水回收系統進行了技術經濟比較，得到噴射泵式蒸汽冷凝水回收系統較為適合。
  12. It has been reported that a number of animal protection organizations accuse the animal management centres including the hong kong animal management centre, formerly known as the victoria road government kennels under the agriculture, fisheries and conservation department " afcd " of being unhygienic, negligent and inhumane in treating animals, resulting in animals in the centres being vulnerable to injuries, illnesses and even death

    據報，多個愛護動物團體指摘漁農自然護理署"漁護署"轄下的動物管理中心包括香港動物管理中心，前稱域多利道政府狗房的生環境惡劣，而且疏忽和不人道對待動物，令中心內的動物容易受傷患病甚至死亡。
  13. To prevent the repeat of the historic tragedy of the black city, through exploring and thinking over the historic rise and decline of the black city and its surrounding environment, a number of recommendations and measures to save the oasis 、 control and protect the ecological environment were put forward, including defending the peace 、 building water conservation projects 、 protecting and rejuvenating vegetation etc

    摘要為了防止黑城歷史悲劇的重演，通過對黑城及其周圍環境歷史興衰的探討與思考，提出了維護和平與穩定、興修水利、保護和更新植被等一系列搶救綠洲、治理和保護生態環境的建議和措施。
  14. There is a number of advisory or statutory boards and committees under agriculture, fisheries and conservation department

    漁農自然護理署轄下有多個諮詢法定委員會
  15. Subsequently, the waves induced forces and their driven effects on currents are studied in detail. in the discussion of the effects of currents on waves, according to the wave radiation theory and the law of wave action conservation, the equivalence of none vorticity condition of the vector of wave number in constant wave field and fermat theory is testified. the dynamic and kinematics effects of background currents on waves are introduced concisely

    在流對浪的作用討論中，依據波動的射線理論和由變分原理導出的波作用量守恆定律，闡明了穩定波場波數矢量的無旋條件與費馬原理的等價性，扼要討論了背景流場影響海浪的運動學效應和動力學效應，首次指出水位（包括天文潮位與風暴潮位）變化對海浪成長與消衰的影響，為流浪潮聯合數值模式的發展提供必要的理論依據。
  16. The project researches into the methods for the environmental planning of ecological cities and towns and the contents and frameworks of the environmentd planning of ecological cities and towns ; define through research the objectives of environmental planning of ecological cities and towns ; make environmental predictions for the development of cities and towns ; study the relationship between the construction of cities and towns in the suburban counties of the metropoles and the eco - environmental conservation and environmental security of the central cities ; prepare the computer softwares for the environmental ecological planning of cities and towns ; and apply the above - mentioned methods and soflwares to the planning of a number of environmental demonstration cities and towns ( also called ecological or green cities and towns ) and intelligent cities and towns

    該項目研究生態城鎮環境規劃的方法;生態城鎮環境規劃的內容和框架;通過研究確定生態城鎮環境規劃目標;城鎮發展的環境預測;大城市郊縣城鎮建設與中心城市生態環境保護和環境安全的關系;編制環境生態城鎮規劃計算機軟體;應用上述方法和軟體應用於若干個環境保護示範城鎮（或稱生態城鎮、綠色城鎮）和智能化城鎮的規劃。
  17. In close collaboration with the antiquities authority, we have handled a number of conservation projects, like the king law ka suk ancestral hall, kun ting study hall, restoration of tai fu tai nobleman s house, sai ying pun district community centre, etc. our dedicated effort is recognized and we are honoured to receive a number of heritage awards given by renowned organizations, like the united nations educational, scientific and cultural organization ( unesco ), the architects regional council asia and the hong kong institute of architect

    我們與古物古跡辦事處緊密合作，多年來處理過的修復工程項目包括有敬羅家塾、覲廷書室、大夫第及西營盤社區中心等。我們在保護香港文化古跡的努力得到廣泛認同，並先後獲多個權威組織頒發保護文物獎項，如聯合國教科文組織（ unesc ） 、亞洲建築師協會及香港建築師學會等。
  18. Examples include : " monthly yearly electricity consumption in kwh " for operational statistics or an energy conservation programme ; " number of participants ", " number of training sessions ", and or " number of environmental topics covered " for an environmental training programme ; " number of types of environmentally - preferable products procured " for a green purchasing programme ; " number of incidents exceeding environmental license limits " for a compliance improvement programme

    例子：註明營運統計或節能計劃的每月每年耗電量千瓦小時環境培訓課程的參加者數目培訓課程數目及或講授的環境課題數目環保采購計劃中獲優先考慮采購的環保產品種類數目促進依法從規計劃中不符合環境牌照最低要求的個案數目
  19. The agriculture, fisheries and conservation department ( afcd ) would continue to investigate the death of a number of waterfowl at penfold park following tests on the waterfowl which gave positive results for h5 last ( december 9 ) night

    漁農自然護理署（漁護署）正調查彭福公園內水禽死亡的事件，署方昨（十二月九日）晚進行的水禽測試結果顯示樣本對h5呈陽性反應。
  20. The stream is of high conservation value, supporting a rich number species of freshwater fish, including the rare beijiang thick - lipped barb

    該條河流極具保育價值，扶養多個淡水魚品種，包括稀有的北江光唇魚
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