次原子價結合 的英文怎麼說

中文拼音 [yuánzijiàjiē]
次原子價結合 英文
secondary valence bond
  • : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
  • : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
  • : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
  • : 名詞1. (價格) price 2. (價值) value 3. [化學] (化合價) valence
  • : 結動詞(長出果實或種子) bear (fruit); form (seed)
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • 結合 : 1 (發生密切聯系; 聯合) combine; unite; integrate; link; binding; coalition; cohesion; connectio...
  1. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種重金屬作為實驗毒物,以鯽魚為實驗動物,應用環境生物技術、火焰吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評、混重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微構的影響等,全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響,初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分等各水平層的影響,為制定漁業生產上預防性的管理措施提供科學依據,及時避免或減輕重金屬污染對水生生態系統造成的損害。
  2. First the thesis elaborate the basis principles of land sustainable use, according to the natural and social economy situation, the characteristics of the land use, the aids and the principle of evaluation, we work out an index system form four aspects of productivity, protection, viability, acceptability. the weigh of indexes are defined by means of analytic hierarchy process, the standardization of indexes are defined by effective function, then, we use multi - aid decision model which mainly reflects that indictors influence on aim and multi - aid liner function which mainly reflects aim the degree of land sustainable use during 1996 and 1999 in taigu

    論文從土地資源可持續利用的基本理論入手,太谷縣的自然、社會經濟狀況與土地利用的特點,依據評的目標和則,從生產性、資源保護性、經濟可行性、社會可接受性四個方面,採用專家咨詢法建立了太谷縣土地資源可持續利用評指標體系,採用層分析法確定了指標權重,應用功效函數法進行評指標的標準化處理,運用反映評指標因對評目標的影響程度的多目標突變決策模型和反映評目標的可持續利用程度的多目標線性加權相的方法,對太谷縣1996年到1999年的土地利用情況進行了評
  3. This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4

    本論文以量構自組裝為出發點,提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒自組裝;提出有機聚網路位組裝zns基納米熒光粉方法,把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成,適于低成本,批量生產;根據當前zno的研究情況,我們首成了非晶zno ,研究了它的光學性質,確定了它的構,並對其摻雜進行了初步的研究,非晶zno表現出強的深紫外發光特性,而可見發射非常弱,是一種有巨大潛在應用值的深紫外發光材料;利用非晶zno的亞穩特性,對晶化過程中非晶zno納米晶zno三維受限量構特性,界面特性進行了深入的研究;利用固相熱分解一般受擴散控制特性,實現了尺寸可控的zno三維量構的自組裝;利用非晶zno的高度分散性,容易均勻成膜特性,實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。
  4. Base on the boost principle analysis and circuit design in the beginning, the author simulated the sub - block circuits and whole chip circuit by applying eda tools hspice, the simulation result indicates that the ic has achieved the expectation of the function target and the electrical characteristics. although there were unavoidable disadvantages of this project, it is a worthwhile and valuable experience

    在完成電路理分析與電路設計的基礎之上,作者應用eda軟體hspice對各個電路模塊和整體電路進行了功能模擬及量化模擬,模擬果均達到或優于預定指標,驗證了作者在第二章中闡述的直流升壓boost電路的設計理論,是設計理論與實踐相的一值的嘗試。
  5. Then a suboptimal solution of the graph maximum equal - cut problem is presented employing the randomized algorithm and the improved coordinate ascent ( descent ) algorithm on the optimal solution of semidefmite relaxation

    在利用lagrange乘理論得出始問題的等形式之後,將近似演算法與改進的坐標上升(下降)演算法,求得問題的優解。
  6. On the basis of chances and challenges after our country ’ s joining wto , drocess innovation becomes the necessary method of survival in the ruthless comdetition of medium and small enterprises the paper lies m process innovation measuring and appraise specially in manufacturing industry , which is to cut down the cost and improve the efficiency firstly , the paper expla ’ ns the related concepts of process innovation in medium and small enterprises , ln the meanwhile , it analyzes the current situation hereafter it analyzes the related factors affecting process innovation according to the establishment principle of the index system in science , it also establishes the principle of the index svstem of process innovation ability ’ s measuring in medium and small enterprises and then establishes the index system secondly the paper , atter studying and contrasting the former measuring and appraise methods to settle fuzzy problem , finds out the problems relational analysis combined with fuzzy and brings out the method - grey a h p grey relational analysis can complete the appraise of the information in uncompleted system. fuzzy a h p can decide the index power in fuzzy index system , which is successfully calculated by using a small example thirdly the paper , with the method and twenty typical examples of medium and small enterprises , draws a correct conclusion of process innovation measuring and appraise in medium and small enterpri ses finally the paper gives corresponding antidotes and sugge 。 t ’ on t0 problems inside process innovation , which can be reference in government and related section ' s making policies and rules , and will have an active effect on the propitious development of process innovation in medium and small enterprises

    接著,對影響製造業中小企業工藝創新的各種因素進行了分析,並在參考科技指標體系建立則的基礎之上,我國基本國情制定了製造業中小企業工藝創新能力測度指標體系的建立則,進而建立了製造業中小企業工藝創新能力測度指標體系。其,本文又對以往的一些對非確定對象的評方法進行了研究對比,發現其存在的問題,提出了本文對製造業中小企業工藝創新進行評所運用的方法? ?灰色關聯模糊層分析。其中灰色關聯可完成對信息不完全系統的評估,模糊層分析可確定具有模糊性指標的權重問題,並以一個小例對本文使用的方法進行了成功的試算。
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