叉積 的英文怎麼說

中文拼音 [chājī]
叉積 英文
kreuzprodukt cross product
  • 叉 : 叉動詞[方言] （擋住, 卡住） block up; jam
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  1. Cross joins are also called cartesian products

    交叉聯接也稱作笛卡爾積。
  2. Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects

    尤其是在過去全球變化pages研究中，埋藏古木纖維素中的碳氫氧同位素分析已成為環境演化研究的主要量化手段。另外，對于中國這樣典型的季風氣候國家，開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚，研究方法和研究內容上也比較簡單，還存在不小差距，既要進一步積累基礎資料，又要做區域對比，加強與相關學科的交叉研究。
  3. The upholding of marxist stand, viewpoint and method, the realization of the fact that the science of dplomacy is an independent discipline with its own area and objects of research, the proper handling of its relationship with relevant cross - disciplinary inquires, the sysematic summation of china ' s rich experiences in its diplomatic practice, the referencing of the positive outcome of research done by overseas researchers, the establishment and optimization of the system of science of diplomacy - these are the elements we should take into account of for building the discipline of science of diplomacy

    摘要文章認為為進一步把中國的外交學學科建設好，必須堅持馬克思主義的立場、觀點和方法；把握好外交學是一門獨立的、有特定研究對象與研究領域的學科；處理好同相關各門交叉學科的關系；系統總結中國外交實踐的豐富經驗；參考並借鑒國外外交學研究的積極成果，建立和完善有中國特色的外交學學科體系。
  4. Xinyuan graphite mould plant is in luocun town, nanhai district, foshan city, it is located the intercrossing of guangfo road andjichang road, so ti has convenient communication. after 10 year of development since its establishment in 1995, it has grown into an important manufacturer in the field of graphite products in china. the plant covers an area of 2000m2, it has years of history in producing graphite products and has accumulated rich knowledge and practical experience and cultivated a high quality professional technical group and capable employee team

    鑫淵石墨模具廠，位於佛山市南海區大瀝鎮，廣佛路和機場路交叉口，交通十分便利，本廠自95年建廠以來經過8年的發展在全國同類行業中已經成為重要生產廠家之一。本廠佔地近2000平米。生產碳石墨製品已有多年歷史，積累了豐富的理論知識和實踐經驗，培養了一支高素質的專業技術隊伍及精幹的職工隊伍。
  5. The sfdr and thd are up to 68db and - 61db. the inl and dnl are smaller than 0. 5lsb. the structure of the converter is improved based on traditional one so that the area of glitch is reduced sharply and the dynamic character is improved

    在電路結構上，提出了單位電流源中的開關差分控制信號交叉點的最優值，並在差分開關上疊加一對常開pmos管，有效減小了輸出毛刺面積，改善了動態性能。
  6. This study run through the basic idea of ecoregional approach methodology and systematic design by integrating agronomy, ecology, environmental economics, resource economics and maths. the study methods included macro - and micro - analysis, qualitative and quantitative analysis, theoretical and case study, statistical analysis and model simulation and so on. resources shortage and environmental pollution casued by intensive agriculture were examined for a specific suburban area shunyi district beijingissues were systematically analyzed including landuse changes, landuse driving force, water - limited yield simulation with wofost model, ecological, environmental and economical analysis of landuse, as well as optimizing pattern of landuse with rcsadss model

    本研究立足於生態區域法的基本思路，採用系統設計的思想，通過農學、生態學、環境經濟學、資源經濟學、數學等多學科的交叉與融合，宏觀與微觀、定性與定量、理論與實證研究等相結合的方法，運用統計分析、模型模擬等技術手段，在大量調研基礎上，針對目前大城市郊區農業用地中存在資源短缺、環境污染等問題，以北京市順義區為典例，從土地利用現狀與動態、驅動力、 wofost模型產量模擬、生態環境經濟分析及種植業結構優化模式等方面進行了系統研究，獲得如下研究結果： （ 1 ） 2002年順義區的土地利用仍以農業用地為主，耕地、園地、林地和牧草地之和占總土地面積的56 ，農用地中糧食作物仍佔43 。
  7. In order to select male nucleo - sterile new genotype, a tentative idea was put forward for the nucleo - male sterility to attach a tps ( thermo - photoperiod sensitivity ) and a selection strategy of combination of selection and identification, at the same time, the spring and summer sowing method were used to provide different environment conditions of appraising sterility and tps. the results indicated that ( 1 ) sterility could be appraised under the spring sowing environment and tps could be appraised under summer sowing environment. ( 2 ) under spring sowing environment, sterility could be selected, but not maintained. thereby, lines selected could only be selected as recorded selection method in the experiment. ( 3 ) and then, selection was carried out from spring sowing line selected into summer sowing in same line with tps to select plants. these plants through the intercrossing selection had been combined with sterility and tps. in this way, a new selection protocol for selection sterile line with tps was formed. it mainly involves the spring and summer sowing method, recorded selection method and the intercrossing selection method

    為了選育新類型玉米雄性核不育系，提出了為玉米核不育性添加溫光敏感性的設想和選擇與鑒定相結合的策略，同時應用分期播種的方法為作物提供不同的生長和發育的環境條件，以鑒定玉米雄穗的育性變化和對不同環境條件溫光的反應.研究結果表明，春播環境下可鑒定和選擇玉米的不育性，夏播環境下可鑒定和選擇其溫光敏感性.針對玉米核不育性難以找到保持系的特性，結合兩種播期選擇兩種性狀.但春播環境下選擇的不育性群體難以通過選擇單株來保持其不育性，為記錄性群體選擇.通過從春播入選的雜合不育性優良株系群體轉移到其對應的夏播溫光敏感性入選的同一優良群體中進行優良單株選擇，能逐漸使不育性和溫光敏感性相結合而選育出純合溫光敏不育系.這種新的選擇程序主要包括應用分期播種法、記錄性選擇法和春夏兩季交叉式選擇法，使含有不育基因的可育株系逐步累積不育基因並增加了溫光敏感性而育成玉米溫光敏不育系
  8. Our company is the profession produces the factory house of the metals plastics handicraft product, is a firm gathers the design and manufacturing, in the last years we are positive to set up to expand, the technique is continuously perfect, the product construction renews continuously, having owned the design, paint, make the mold and wash to press, print, throw the light, electroplate, linear production in flowing water in etc. in packing technique equipments, main creation : every kind of copper, iron, stainless steel, aluminum, zinc metal alloy, lead tin metal alloy, acryl, pvc. . etc. material of the badge, medal, key buttons up, the badge of police, memorial chapter, memorial currency, school badge, craft mark card, skin piece mark card, tie clip, knife and fork cutlery, into oil acryl, bottle opener, music speech bottle opener, resemble etc. travels the trophy, the business advertises the promotion gift and craft gift

    本公司系專業生產金屬塑料工藝品的廠家，是一家集設計與製造為一體的供應商，多年來積極創新開拓，技術不斷完善，產品結構不斷更新，已擁有設計、繪圖、制模、沖壓、印刷、拋光、電鍍、包裝等流水線的生產技術設備，主要製作：各種銅、鐵、不銹鋼、鋁、鋅合金、鉛錫合金、壓克力、 pvc等材質的徽章、獎章、鑰匙扣、警徽、紀念章、紀念幣、校徽、工藝標牌、皮件標牌、領帶夾、刀叉餐具、入油壓克力、開瓶器、音樂語音開瓶器、像架等旅遊紀念品，商務廣告促銷禮品及工藝禮品。
  9. He lay flat on the brown, pine-needled floor of the forest, his chin on his folded arms.

    他匍匐在樹林里褐色的，積著一層松針的地上，交叉的手臂支著下顎。
  10. The students who got higher score in meta - cognition ability had higher performance in problem - posing. 4

    以整體試題而言，依次為量數同構型、多重比例型、比較型、叉積型。
  11. Cross product of chain

    鏈的叉積
  12. Crossed product of rings

    環的交叉積
  13. The torque i acting on a particle is defined as the cross product of r and the force acting on the particle.

    作用於粒子上的力矩I定義為r與作用在粒子上的力的叉積。
  14. The crossproduct over weak hopf algebras

    代數上的雙重交叉積
  15. Decycling number of box - cross product of two paths

    關于兩條路的盒叉積的消圈數
  16. The following example returns the cross product of the two tables

    這兩個表的叉積。
  17. Cross join specifies the cross - product of two tables

    指定兩個表的叉積。
  18. Cyclic crossed product

    循環叉積
  19. The torque i acting on a particle is defined as the cross product of r and the force acting on the particle

    作用於粒子上的力矩i定義為r與作用在粒子上的力的叉積。
  20. This paper mainly study the relations between some algebraic properties of roe algebras and the coarse geometry of metric spaces, and its applications to the reduced crossed product c - algebras and the coarse baum - connes conjecture. the paper consists of two chapters

    本文主要研究這類c ~ * -代數的某些性質與底空間幾何之間的聯系及其在交叉積c ~ * -代數和粗baum - connes猜測中的應用。
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