板周長 的英文怎麼說
中文拼音 [bǎnzhōuzhǎng]
板周長
英文
board perimeter-
At about the centre of the oaken panels, that lined the hall, was suspended a suit of mail, not, like the pictures, an ancestral relic, but of the most modern date ; for it had been manufactured by a skilful armourer in london, the same year in which governor bellingham came over to new england. there was a steel headpiece, a cuirass, a gorget, and greaves, with a pair of gauntlets and a sword hanging beneath ; all, and especially the helmet and breastplate, so highly burnished as to glow with white radiance, and scatter an illumination everywhere about upon the floor
大廳四周全都鑲嵌著橡木護墻板，正中位置上懸接著一副甲胄，那可不象畫中的那種遺物，面是當時的最新製品因為那是在貝靈漢總督跨海來到新英格蘭那一年，由倫敦的一位技術熟練的工匠打造的，包括一具頭盔一面護胸一個頸套一對護腔一副臂銷和吊在下面的一把長劍。The stiff floor structure has bigger displacement and smaller internal forces. under seismic forces, frame with eiastic fioor has bigger vibration period, and takes on complicated modes of vibration. due to the big vertical rotation, structure with elastic floor shows more prominently coupling vibration of bending rotating and twisting
如，彈性樓板的結構位移比剛性樓板結構的位移大，內力也是彈性樓板結構的大；在地震力作用下，考慮彈性樓板變形的空間框架振動周期比剛性樓板框架長，而且其振型表現得也比較復雜，由於豎向扭轉位移較大，彈性樓板結構表現出更明顯的彎扭耦聯振動。A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle
摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型，在研究了脈沖超聲波在無限長板中傳播的基礎上，對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。Theoretical models were used to predict the effects of microcrack - density to effective tensile modulus of cf / ep laminates for long - term duration exposure for it difficult to get from tests. a uniaxial zero - expansion model was established based on the analysis of thermal stress and the coefficient of thermal expansion of the laminates
由於受到試驗周期的限制，對于長期暴露于空間環境中的層合板材料，其有效拉伸模量很難用試驗方法直接測量，本文採用理論模型進行分析。It ' s well - known that nucleation consisted of homogeneous nucleation and heterogeneous nucleation. the organic matrix used as the template to induce inorganic crystal growth and simulate the biomineralization is actually to promote heterogeneous nucleation and inhabit homogeneous nucleation. urinary stone is a kind of product of unusual biomineralization
眾所周知，結晶過程中的成核有均相成核和非均相成核兩種可能，利用有機基質做模板，誘導無機晶體生長，模擬生物體內的礦化過程實際是促進非均相成核而抑制均相成核。And, we also have had the relation between the size of the horizontal circulation regions and the fr number around the dike for the flow - deflection method. the results of this study show that, using the method of flow - deflection or " sucking - spouting " water, the flow pattern can be improved, the size of the horizontal circulation regions and the sedimentation volume caused by the horizontal circulation can both be reduced. so, they can be adopted to improve the navigation condition of upper approaching channel of three gorges project, which could guarantee the safety of navigation
通過試驗，得到了以下創新的成果： 1 、不加吸、噴水時，丁壩后的迴流長度約為丁壩長度的8倍； 2 、加吸、噴水可以減小丁壩后的迴流尺度和強度，並得出了有理論根據的吸、噴流量與迴流尺度減小之間的定量關系以及吸、噴流量與丁壩周圍流速梯度之間的定量關系； 3 、加吸、噴水可以減小迴流淤積，並得出了吸、噴流量與淤積量減小之間的定量關系以及迴流尺度減小與淤積量減小之間的定量關系； 4 、加導流板可以減小丁壩后的迴流尺度，並得出了丁壩周圍的水流fr數與迴流尺度減小之間的定量關系。This, on the one hand, greatly obstructs the automation, and on the other, makes it very hard for the green hand to master. as a result, the technique is now meeting with the problem of handing down. the key to the problem is to quantify in a pragmatic way the effect that different factors have on plate shaping
隨著科技的發展，由於水火彎板加工的經驗性及手工操作，使得外板彎曲成形加工成為影響船體建造周期與實現自動化的瓶頸；而且隨著老工人的退休，而青年工人掌握這項工藝又需相當長的時間，導致水火彎板技術青黃不接的現象日趨嚴重。The wear - out of the edges of upper & lower punches as well as the liners would be decreased and the life span of the mould be lengthened because of the positioning of upper punch and enlargement of exhaust passage
由於上沖頭的定位和下排氣通道的增大，減小了上下模芯刃口的側板的磨損，延長了模具的使用周期。The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。The works included 24 bored piles of 2. 5 meters in diameter and 55 meters in depth, 500 meters long underground concrete diaphragm wall of 0. 8 meters thick and 25 meters deep, 450 pre - cast concrete pile of 0. 5 meters in diameter, 12 meters deep soil excavation with multi - layer post - tensioning shoring system, reinforced concrete pile caps and basement slabs
其工程內容包括了24支直徑2 . 5米，深達55米直入巖層的鉆孔樁，周長500米，深度25米，厚度0 . 8米的地下連續混凝土墻， 450支直徑0 . 5米預制混凝土樁， 12米深開挖，多層水平鋼支撐系統，混凝土樁承臺及地庫底板結構。Abstract : the general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
文摘:簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。It is well known that end - plate connections have definite flexibility, which can increase damp, prolong period, and decease swing of structure. so it can reduce the damage, and is one of the best choices for resisting earthquake
端板連接是一種具有一定柔性的連接形式，當框架結構採用這種節點時，可以增加結構的阻尼，延長結構自振周期，減小震幅，從而降低震害，是抗震的理想選擇之一。However great a distance he traverses, however strange, unknown, and dangerous the regions to which he penetrates, all about him, as the sailor has the deck and masts and rigging of his ship, he has always everywhere the same comrades, the same ranks, the same sergeant ivan mitritch, the same regimental dog zhutchka, the same officers
無論他走了多麼遠的路，無論他進入多麼奇怪的人所不知而且危險的緯度地帶，隨時隨地在他周圍出現的總是那些同事那些隊伍那個叫做伊萬米特里奇的上士那隻叫做茹奇卡的連隊的軍犬那些首長，就像水兵那樣，隨時隨地在他周圍出現的總是兵船上的那些甲板桅桿和纜繩。The banggio ( banchiao ) to lamgang ( nankang ) rapid transit system has been down every day for the last four days since inaugurated by daibag ( taipei ) ' s mayor ma on his administration ' s one year anniversary day
板橋透南港耶捷運系統自四工前馬市長慶祝伊政權一周年彼工開始通車了后四工攏出問題。The stiffness of the former is less than the latter, and the natural periods of the former is longer than the latter
前者模型的剛度較後者柔，其周期較後者長。且樓板模型的選取對結構的扭轉影響較大。Centering at soft x - ray multilayer uniformity technology, we introduce general situation of multilayer, design of multilayer structure, simulation calculation, ion - beam sputtering deposition and evaluation of samples. above all, we carry out study of improving uniformity of period thickness spatial distribution, and develop correction mask for controlling period thickness. as a result, we improve uniformity from 4. 5 % to 2. 0 %, the error of period thickness on ( 130nm field is controlled within 0. 18nm, and the reflectivity reach 35 % at center wavelength 17. 1nm
特別地，我們設計並應用膜厚擋板補償技術控制多層膜的膜厚分佈，將膜厚分佈非均勻性從4 . 5減小到2 ，周期厚度絕對差值控制在0 . 18nm以內，並且制備得實際多層膜樣品在中心波長17 . 1nm處實測反射率達到35 ，達到實用水平。Users plot a coarse outline of video objects in the graphic user interface ( gui ) using the mouse at the first step, then fill the outline to obtain a binary model, using seed growing and wavelet edge correct the outline. in tracking video objects, we obtain an initial segmentation uses motion information and the model of previous frame, and correct by the information of space. finally, we obtain an accurate segmentation
利用視覺系統的周邊抑制機制對模板外的象素進行屏蔽，消除背景影響，由自動閾值選取的小波邊緣提取獲得視頻對象的邊界，利用種子生長法進行輪廓擬合，由最短路徑法校正模板，在進行視頻對象的跟蹤時，利用運動信息和上一幀的模板，得到一個初始分割，利用空間信息對邊界象素調整，最後得到精確分割的視頻對象。Firstly, this paper analyzes the characteristic of single piece and the mass material resource consumption in the project manufacture enterprises, and the characteristic of large numbers of stock resource consumption in which, general plan of the cutting stock system for project manufacture enterprises is proposed
首先分析了工程項目型製造企業的單件性、物料消耗大的特徵，和其板材物料資源消耗量大、周期長的特點，提出了面向工程項目型製造企業的板材下料系統的總體方案。分享友人