linear base 中文意思是什麼

linear base 解釋
線性時基
  • linear : adj. 1. 線的，直線的。2. 長度的。3. 【數學】一次的，線性的。4. 【動、植】線狀的；細長的。5. 由線條組成的，以線條為主的，強調線條的。
  • 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...
  1. Leaves tufted ; stipes 15 - 30 cm long, densely scaly at base, glabrous above ; sterile lamina about 60 cm long and 20 cm wide, simply pinnate ; pinnae numerous, alternate or subopposite, linear - lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed ; veins close, forking once or twice and forming areoles near the midrib ; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0. 4 cm wide, lower surface almost entirely covered with sporangia

    葉簇生；葉柄長15 - 30厘米，基部密被鱗片，向上近光滑；不育葉片長約60厘米，寬20厘米，一回羽狀；羽片多數，互生或近對生，線狀披針形，最長者長達12厘米，寬約1厘米，頂端長漸尖，基部心形，邊緣有細密鋸齒；葉脈1 - 2次分叉，近中脈形成網眼；能育葉與不育葉相似，但較小，長約8厘米，寬約0 . 4厘米，下部滿布孢子囊。
  2. Application of linear programming on bidding decision of compound base price

    線性規劃在復合標底投標報價決策中的應用
  3. Leaves tufted ; stipes stout, up to 1. 2 m long, densely covered with golden brown hairs at base ; lamina up to 2 m long and 1 m wide, tripinnatifid ; pinnae alternate, sparsely spaced ; pinnules linear - lanceolate, to 15 cm long and 1 - 2. 5 cm wide, short - stipitate ; ultimate lobes linear, more or less falcate, shallowly serrate, dark green and shining above, light green to glaucous below

    葉簇生；葉柄粗壯，長可達1 . 2米，基部亦密被金黃褐色毛；葉片長可達2米，寬達1米，三回羽狀分裂；羽片互生，疏離；小羽片線狀披針形，長達15厘米，寬1 - 2 . 5厘米，具短柄；末回裂片線形，略呈鐮狀，邊緣有淺鋸齒，上面深綠色，有光澤，下麵灰白色。
  4. But it is not the same with surd or the alternation of sonant and surd. on the base of the acoustics, a whole linear time - varying discrete speech produce model is established through anatomising the factors including track, driving source and lip eradiation the mechanism of speech in this paper, and we draw a conclusion that the time between glottal closure is pitch period

    本文從聲學理論出發，剖析了語音產生的機理，綜合考慮聲道、激勵源和嘴唇輻射三方面的因素，建立了一個完整的、線性的和時變的語音產生的離散系統模型，得出兩次聲門閉合事件之間的時間間隔就是基音周期的結論。
  5. Theoretical study on non - linear optical properties of the meo derivatives of bis salcyladiminato schiff base

    光譜和二階非線性光學性質的理論研究
  6. Pitch control system consist of three channels which is formed by three drive units. base on need of bench, drive system scheme is designed. single channel three - loop position servo system which is formed by linear motor is simulated. then kinetic behavior of rotor and system ’ s force coupling relation is analyzed. a compensation method for dynamic load which is caused by rotor rotation is presented base on structure - invarient theory

    根據實驗臺的技術要求，設計了整個驅動系統方案。對由直線電機構成的單通道三環位置伺服系統進行了設計和模擬。分析了旋翼運動的動力學特性、系統力耦合關系，並根據結構不變性原理對由旋翼運動產生的動態載荷提出了補償方法。
  7. In this paper, the starting parameters of the motor is estimated by kalman filtering arithmetic that is a parameter test mehod that can be considered the running state. base on the basic kalman filtering arthmetic, linearization extended kalman filtering arthmetic that is fit to the motor system that is a non - linear controled system is got

    因此本文利用卡爾曼濾波遞推演算法對電機起動時的參數進行估計，該方法是一種結合運行方式的參數測試方法，從基本的卡爾曼濾波遞推演算法出發，推得了適應電機這個非線性控制系統線性化的推廣卡爾曼濾遞推波演算法。
  8. On the base of analysing the ordinary design methods, aiming to the minimum annual cost or investment, taking the pipe length and water pump lift as decision - making variables, the linear programming models are presented to optimize the diameters of main network and field network

    論文首先分析了常規微灌系統規劃設計方法，在此基礎上，以年費用或投資最小為目標，用離散管徑方法，以管段長度和水泵揚程為決策變量，分別建立了水泵加壓式和自壓式干管管網優化設計以及田間管網優化設計線性規劃模型。
  9. Thirdly writer, using linear elastic theory and finite element program ( ansys ), analyzed expanding bolt pullout test. fifthly, writer using the modified mohr - coulomb failure theory, on the base of curving failure surface, derived a theoretical formula between pullout force and compressive strength. then the thesis compared the formula with the strength - detecting formula of expanding bolt pullout method

    本文採用ansys有限元程序對脹栓拔出法試驗過程進行彈性理論分析；以修正的摩爾-庫侖破壞準則，在擬合實際破壞面的基礎上推導出極限狀態下脹栓拔出法的混凝土拔出力與混凝土抗壓強度的理論公式，並把該公式與脹栓拔出法測強公式進行了比較。
  10. Both the frequency and intensity of 1146. 0cm - 1 change largely, etc. discussed and compared the mechanism of these interaction in detail we got some conclusions as following : both zn2 + and cd2 + ions can chelate with po2 - and come into being - po2 - me2 + n7 ( purine ) chelate. as to zn2 + ions, when r2. 0, the quantity of po2 - zn2 + n7 is directly linear with r. when r2. 0, zn2 + ions even can chelate with c at n3 - o2 sites and this chelation will disrupt the h - bond between gc base pairs and make the dna structure unstable. as to cd2 + ions, only when r is within 1. 0 - 1. 5 can this chelation take place and the relation of the quantity of this chelate with r is not easy to conclude

    通過對這些變化進行詳細討論和分析，我們得到了如下的結論： zn ~ （ 2 + ）和cd ~ （ 2 + ）都可以跟dna的磷酸基團螯合，形成- po _ 2 ~ - … me ~ （ 2 + ） … n7 （ g ）螯合物，但是前者的螯合跟離子濃度有很大的關系，在摩爾濃度比小於2 . 0時，螯合物的生成量跟r成正比關系，而後者的螯合跟離子的關系不是很明顯，只有當r處於1 . 0至1 . 5之間時，螯合作用才能進行，並且螯合物的生成量跟r之間沒有很明顯的關系存在。
  11. In this part, the first work is pretreatment of a numerical model, including creating calculating grids automatically, improvement of the linear boundary technique and so on. the second work is to estimate the siltation of a basin or channel by liu ' s equation. the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model

    其中主要的工作是：其中主要的工作一是數學模型的前處理，計算網格自動生成，線邊界法的優化；二是應用劉家駒公式在長江口深水航道治理工程地理信息系統的支持下實現港池、航槽開挖的實時回淤估算；三是將計算成果形成gis管理和支持下的工程數據庫系統（ engineeringdatabasemanagementsystem ） ，同時嘗試解決時間序列數據如地形沖淤變化，潮位、流速過程的分析、查詢和顯示問題，並實現實時、互動的動態演示及三維可視化。
  12. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  13. On the base of keeping the same law of motion of original thread - taking - up pole of computerized embroidery machine and relevant sizes, the disc cam with pushing bar of roller of linear motion along the axis with the spring force closure is used to design a new thread - taking - up mechanism

    摘要保持原有電腦刺繡機挑線桿運動規律和相關尺寸不變，採用對心直動滾子推桿盤形凸輪機構，輔以彈簧力進行鎖合，對原挑線機構進行了創新設計。
  14. At first, the author establish the linear and geometric nonlinear static equation on the base of rigid equation of element by qr method and analysis the inner force of spatial lattice structures, and establish the linear and material nonlinear dynamic equation and solve these equations by the method of no limit stabilization

    建立網殼結構的線性靜力方程和幾何非線性靜力方程，進行了靜力性能分析；建立線性動力方程和材料非線性動力方程，用樣條無條件穩定演算法分別對其進行求解。
  15. As a result of the heightening of mechanical operation speed and the application of new materials and new structures, the nonlinear dynamic behavior in rotating machines is becoming increasingly outstanding and important. nonlinear dynamic phenomena in rotating machines cant be described, explained and predicted by rotordynamics based on linear system theory. along with the deepening and permeating of nonlinear scientific research, the nonlinear vibration of rotor systems has become an attractive field in recent years. from a point of view to set up the distinct corresponding relations between vibration states and failures of rotating machines, main advances in the research of rotor nonlinear vibration are summarized, and typical nonlinear dynamic phenomena and their forming mechanism are also summed up in the paper. the aim of the paper is to enrich the diagnostic knowledge base of rotating machines. 55refs

    由於機械運轉速度的不斷提高和新型材料、新型結構的推廣應用，旋轉機械的非線性動力學行為日顯突出和重要.基於線性系統原理的轉子動力學理論與方法難以對實踐中出現的豐富的非線性動力學現象作出準確的描述、闡釋和預測.近年來，隨著非線性科學研究的深入和滲透，轉子系統非線性振動已成為應用力學和機械工程領域的研究熱點之一.從有利於建立旋轉機械振動狀態集與故障集之間的映射關系出發，綜述了近年來轉子系統非線性振動研究的主要進展，總結了轉子系統中出現的典型非線性動力現象及其產生機理，目的在於豐富旋轉機械故障診斷知識庫.參55
  16. The essag discussed and analysed the flood features of the middle reaches of yi rever and its causes. on the base of related analysis of the water level and the flood area, it set a linear and regressive model and predicted the flood degree tentatively

    論述並分析了沂河中游洪澇災害的特點及其形成原因，在相關分析的基礎上，建立了線性回歸模型，並對受災程度作了初步預測
  17. Materials for printed boards and other interconnection structures - part 2 - 19 : reinforced base materials, clad and unclad ; epoxide cross - plied linear fibreglass - reinforced laminated sheets of defined flammability vertical burning test, copper clad

    印製板和其它互連結構用材料.第2 - 19部分:被包和非包被增強基材料.規定燃燒性的環氧交叉簾布層線性纖維玻璃增強包銅的疊層板
  18. In this paper, we will more deeply research on the base of the works, the first part, we give the summarize for the condition and the significance. the second part, we give the preparation knowledge to the whole paper ; the third part, we research the lower and upper bound of the generalized hamming weights for the linear codes ; include d ( r, n, k ) bound, the finite sum representation of the lower and upper bound function of generalized hamming weights for linear codes, generalized griesmer bounds ; the 4 - th part, research the definition, the property of the r - th generalized weights for the non - linear codes and non - linear constant codes, and give the expression of the generalized weight of binary ( n, m, d ) non - linear codes ; the 5 - th part, research the weight hierarchy of linear codes and non - linear codes, for example, necessary condition and sufficient condition, the 6 - th part, we research the expression of the r - th generalized hamming weights of reseaval classes codes

    本文在已有的基礎之上作了進一步的探討，第一章綜述了廣義hamming重量的現狀和意義；第二章給出了全文的預備知識；第三章研究了線性碼的廣義hamming重量的一些上下界；包括d （ r ， n ， k ）界，上下限函數有限和表達式，廣義griesmer界；第四章討論了非線性碼及非線性等重碼的廣義hamming重量的定義、性質，給出了2元（ n ， m ， d ）非線性碼的第r廣義hamming重量的表達式；第五章研究了線性碼、非線性碼的重量譜系；第六章給出了幾類碼的廣義hamming重量的表達式，這些碼包括直和碼（ directsumcodes ） 、笛卡爾積碼（ cartesianproductcodes ） 、張量積碼（ tensorproductcodes ） 、延長hamming碼。
  19. The variable bandwidth local linear regression method we used in this paper have the advantages of both the local linear regression method and the variable bandwidth idea. the variable bandwidth henced the flexibility of the estimation. and it make this method can fit the spacial complex curve very well. and the asymptotic results of the estimation found the theoretic base for find the best variable bandwidth and drive the pratical best variable bandwidth from data directly

    本文所用的變窗寬局部線性回歸方法，繼承了局部線性回歸的優點，並且使用變窗寬提高了所得估計的可塑性。並使之能成功地處理空間非齊次曲線等復雜形狀的曲線擬合問題。所得估計的漸近結果為求漸近最優窗寬方案以及直接從數據估計最優變窗寬提供了理論基礎。
  20. Meanwhile, the composition of the motor system is also given while the motor works as a starter. a mathematics model for doubly salient permanent magnet motor is constructed from the view of conversation of energy. on the base of linear disposal for permanent magnetic flux, some control strategies are put forward such as control mode i, angular advance control mode and control mode ii

    首先介紹了所研究的雙凸極電機結構以及電動運行時系統構成情況，從能量守恆的角度構建了永磁式雙凸極電機的數學模型，在永磁磁鏈線性化處理的基礎上提出了控制方式一、角度提前方式、控制方式二等電動運行方式，並建立了各電動運行方式的模態方程，是對雙凸極電機進行進一步研究的基礎。
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