base width 中文意思是什麼

base width 解釋
底寬
  • base : n 1 基底,基,根基,底座;底層,底子;(紀念碑等的)基址;(山)麓。2 【軍事】基地,根據地。3 根...
  • width : n. 廣闊;寬度;幅度;(布匹的)門面;幅員;廣博。 12 feet in width 闊 12 英尺。 width in the clear 【林業】除皮直徑。
  1. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。
  2. This thesis introduces the base theory and correlative information of variable frequency speed variation, and expatiates sinusoidal pulse width modulation ( spwm ). the principle of svpwm is in - depth discussed, and a simple algorithm for svpwm is ratiocinated

    本文介紹了交流變頻調速的發展概況,分析了其基本原理,闡述了正弦脈寬調制( spwm )原理,對svpwm理論進行了研究,給出了svpwm的簡單實現演算法。
  3. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論: ( 1 )提出了「復合雙層地基」的概念,並通過工程實例證明此概念的提出有其合理性和必要性; ( 2 )用彈性地基梁理論證實了復合雙層地基確有應力擴散效應,且擴散效應隨上覆硬層厚度、剛度的增加而增大,隨下臥層基床系數的增大而減小; ( 3 )建立了非線彈性、各向異性有限元模型,並以此為基礎分析了復合雙層地基的應力擴散效應,得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論; ( 4 )推導了可用於常規計算的復合雙層地基應力擴散系數公式,並代入工程實例進行了驗證。
  4. The ' shape of basal tegmen, basal piece of lateral lobe with crack in base, lateral margins of basal piece of lateral lobe, the ratio of width of lateral lobe and width of apex of basal piece, shap

    本文分析討論了雌性產卵器各部分的結構特點在偽葉甲亞科分類中的意義,如肛側板是否分片、肛側板背面部分是否延長、基腹片基部大片的分節
  5. The paper studies three key problem of base station array antenna for mobile communication, controlled radiation pattern, beam width and passive intermodulation

    本文研究移動通信基站天線中的三個關鍵問題,波束賦形、波瓣寬度、無源交調。
  6. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程,分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析,推導了天線方向圖旁瓣包絡、波束寬度,干凈掃描區寬度的估計公式,給出了近軸旁瓣電平與陣列參數的關系。
  7. Our company was established in 1985. for years, we always adhered to the principles of " quality first and integrity ut most ", and increased our productivity year by year. currently, we produce ten kinds of products inculding app, sbs new - type waterproof asphalt - flet - base cloth, and motor filter paper, filter cloth, lnner decoration for automo - bile cloth, broad - width cloth. our products are sold to many foreign countries and areas such as parkistan, korea, japan, etc. it has passed the certification to iso 9001 : 2000 quality system, the employers amount is more than 120 persons. our factory was acceptd as membership by china building materials waterproof association, china internal combustion association and china industrial textile association

    目前,公司主要產品有app sbs新型防水卷材基胎布汽車工業濾紙濾布汽車裝飾布土木布擦拭布等十幾種產品。公司擁有職工120人,國內較先進的無紡布生產線8條, 2003年3月,順利通過了iso9001國際質量認證,標準檢測設備全。公司產品已遠銷韓國巴基斯坦伊朗日本等十幾個國家及國內二十幾個省市和地區。
  8. Based on the research of influenced parameters on constant and varying depth solid web box girder before, the shear lag aroused by the parameters including width - span ratio, outstanding flange on base slab and the position of the tendons are further studied. the investigation show that shear lag values diminish along with the decease of width - span ratio and the departure from the symmetrical axis of anchor position, but outstanding flange is contrary to the former

    在前人對等截面、變截面實腹箱梁剪力滯效應影響參數研究的基礎上,本文進一步對腹板開孔的連續箱梁的寬跨比、底板翼緣伸出以及預應力錨固位置改變等參數對箱梁剪力滯的影響進行研究。
  9. The use of a vertical seawall resting above the rock fill mound would minimize the width of the base

    在毛石堆上建造垂直海堤可減少底座的闊度
  10. Based on the requirement, a base station array antenna of which beam width in h - plane is 45 is made. the relationship between the size and the performance of array antenna is researched. the antenna is tested and is proved eligible

    根據實際要求,設計一副水平面波瓣寬度為45的基站陣列天線,討論天線尺寸與性能指標的關系,對天線進行測試,達到了設計要求。
  11. Chapter two, sometimes is the common topic to civil law scholars, but the studying products fall short of depth and width, so this chapter is governed by the historic overview and comparative method, under the base of examining the development and vicissitude of roman trust notion, probing into why the civil law did n ' t develop and shape the institution of trusts like anglo - saxon jurisdictions, meantime collecting and analyzing the various experiences and lessons from a number of civil law countries, not only including mixed - system jurisdictions ( scotland, quebec ) influenced by common law tradition far - reachingly, but also including the various effects of the trust law codified by pure civil law countries ( liechtenstein, japan, latin american countries ), and the developments of domestic trust in holland and italy under the rectification of the trust hague convention, ad hoc, including the experiences and lessons of non - recognition trust countries ( germany, france, switzerland ) that they had been penetrating into the notions in civil codes, all is intended to " portrayed " the competitive panorama between civil

    第二章「信託觀念與民法傳統的沖突和融合」 :這一主題一直是民法學者探討的核心問題,本部分採取了歷史考察的方法和比較分析的方法,在考察羅馬法中的信託觀念的發展和變遷的基礎上,探討了為什麼民法傳統沒有發展出如普通法系一樣的信託的若干原因,同時一廣泛地涉獵了民法法系各國繼受和發展信託觀念的不同的經驗和教訓,不僅包括深受普通法系影響的混合法系(蘇格蘭和魁北克)在民法傳統的物權法匡架中發展信託的獨特經驗,而且考察了純粹民法傳統的國家(列支敦斯登、日本和拉丁美洲國家以法典繼受信託的不同的效果,以及在1984年《關于信託的法律適用和承認的公約卜v發展國內信託例證?一荷蘭和義大利,更包括了對于沒有接受普通法系信託而在民法典中挖掘信託觀念的德國、法國和瑞十的經驗和問題,並意圖勾畫民法傳統中的信託與普通法系的信託相競爭的全景,介刑」析眾多經驗和教訓i的基礎上為我國《信託法》的發展提供借鑒。
  12. It is found that the current amplification coefficient strongly depends on the spin polarization of the electrons injected from the emitter to the base, the spin relaxation time and the width of the base

    自旋晶體管中的電流放大系數主要取決于注入基區的自旋極化電子的極化程度,基區中自旋的馳豫時間及基區的寬度。
  13. On the base of the research about the prestressed concrete structures at chongqing jianzhu university, a convenient and practical way to control the cracks is introduced in the pages, which is called the method of nominal tension stress that control the width of cracks by the nominal tension stress ftk under the working loads and the limited loads

    文中在參考重慶建築大學多年研究成果的基礎上,通過研究四榀預應力框架梁的裂縫發展情況,推薦了一套了實際結構工程設計中方便的裂縫控制方法? ?以名義拉應力ftk控制短期荷載及長期荷載作用下預應力梁的裂縫要求。
  14. According to the code for aseismatic design of building structure ( gbj11 - 89 ), the seismic base - shear method has always been used to calculate the seismic response of building structures. in those structures, their weights and rigidities equally distribute along their heights which do not exceed 40m, and their deformations are mostly the shearing type ( when the structures " ratio of height and width are smaller than 4 )

    我國《建築抗震設計規范》 ( gbj11 ? 89 )中規定,對于重量和剛度沿高度分佈比較均勻、高度不超過40m ,並以剪切變形為主(房屋高寬比小於4時)的結構,可採用近似計演算法,即底部剪力法來計算其地震響應。
  15. A way to avoiding crack or reducing crack width of concrete or reducing distortion of member is using prestressed concrete. the writer tried to make full use of the merit of the prestressed concrete and designed prestressed concrete mandril to control crack of structure. the prestressed concrete mandril, which was firstly applied high pressure on a small concrete bar, and then was made in concrete, so it would act as reinforced bar and resist load. in this thesis the writer designed 24 mmnbers and had experimental study of them, reached the conclusion that the effect of resisting crack of the prestressed concrete mandril was good when the load was not large, it can enhance the capacity of resisting crack and reduce the crack distance and crack width, but when the loads was large, the effect of resisting crack was not good, when we used the prestressed concrete mandril and reinforced bar together in member, the effect of resisting crack was very good. the writer analysed the adherence mechanism and wreck mechanism of the prestressed concrete mandril in anxial tension members, and according to the character of the prestressed concrete mandril, the writer constructed the bond model of it. then the writer introduced the analysis theory of crack including the bond - slip theory, the non - slip theory, the synthesis theory and mathematics stat method. the different theory had different theory base, they considered that the primary affection of crack width was different. in this test, the crack distance and crack width of members which placed reinforced bar were match to the compute value of the code gb 50010 - 2002 very well. to the members which

    本文共進行了24根試件的試驗研究,得出了預應力混凝土芯棒能較大地提高構件抗裂承載力,在荷載小於預應力混凝土芯棒的開裂荷載時有較好的抗裂效果,能較大地減小裂縫間距和裂縫寬度,但是當荷載較大預應力混凝土芯棒開裂時預應力混凝土芯棒的抗裂效果不是很好,若將普通鋼筋和預應力混凝土芯棒一起使用時則有很好的抗裂效果。本文分析了預應力混凝土芯棒在軸拉試件中的粘結機理和破壞機理,根據預應力混凝土芯棒本身的特點,提出了預應力混凝土芯棒與后澆混凝土之間的粘結模型。然後本文詳細介紹了經典的裂縫分析理論粘結滑移理論、無滑移理論、綜合理論和數理統計方法,各理論有著各自不同的理論基礎,認為影響裂縫寬度的主要影響因素也各不相同。
  16. ( 2 ) base on the crack width mode, separately establish formula of the bendingcurvature 、 crack height 、 the distance between crack, and compost the formula of thecrack width. and put the experiment data of others literature into the formula, thecalculated result also show good agreement with the experiment data

    ( 2 )在上述模式的基礎上,分別建立使用荷載下曲率計算、裂縫高度取值及裂縫間距計算的公式,由此形成最終裂縫寬度計算公式,該公式概念清楚、計算簡單,並引用其他文獻的試驗數據代入公式,計算結果與試驗數據吻合較好。
  17. Preparation for construction : the surface of the under layer should be even and firm, and in accordance with the design requirement, without loose material and flaccid site, and need to reroll 2 3 times within full - width range of the subgrade with vibrating roller before the construction, as well as test the compaction and defecting, to check whether there is unqualified point in the soil base

    施工準備:施工前下承層表面要平整、堅實,符合設計要求,無鬆散材料和軟弱地點,施工前要用振動壓路機在路基全寬范圍內復壓2 3遍,同時進行壓實度及彎沉檢驗,檢查土基中是否有不合格點。
  18. This processing line has two sszm1200c straight line double edgers and 90 transfer table. 30 spindles on each sszm12000c, high collocated, wheels. high - level of polishing ; compact and steady base, precise and smooth transfermission system ; big power frequency - conversion motor to control the speed of pedeail ; plc control system sets processing parameters via interface, to control the width and the speed, the minimum size of the glass can be 127xl27mm ; the structure of the machines is compact and stable. this line is our new designed products, and it s the ideal choice of assistant equipment for exquisite and industrial glass, besides, it can be used with other machines to form a production line set

    本生產線由2臺sszml200c玻璃直線雙邊機和1個90中轉臺組成每臺sszml200c玻璃直線雙邊機配置30個磨頭,磨輪配置多,加工拋光精度好底座穩重扎實,傳動系統精確流暢大功率變頻電機調速控制傳送皮帶驅動plc控制系統通過界面設定參數控制,最小加工玻璃寬度尺寸小至127127mm機器結構緊湊性能穩定,是我公司全新設計的力作是大批量精品玻璃和工業玻璃磨邊生產的暈佳配套設備,可口與夾膠印花,鋼化等生產線配套使用
  19. Base - width modulation

    基區寬度調制
  20. Dam base width

    大壩底寬
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