base-diffusion 中文意思是什麼
base-diffusion
解釋
基區擴散-
The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological
分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象，依據astm標準及國際通用文物保護研究方法與評估準則相結合，通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定，及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響，對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。 -
The paper analyses the law of services spatial diffusion in chongqing city, which is the law of business services spatial diffusion base on contagious diffusion hierarchical diffusion and base on the law of stochastic diffusion along the axes, and, according these principle, revise the unit factors score of business services calculated by using traditional way
由於重慶市地形復雜，江河阻隔，因此山城城市職能除表現為傳染擴散規律外，更突出地表現為等級擴散和軸向隨機擴散規律。文章依據這些原理對採用傳統的方法得到的商服功能影響作用分進行修正，同時探討了結點數動態變化時城市職能的空間擴散規律。 -
With the development of doping technology, the formation of the base region in high - voltage transistor can be made by b diffusion technology, b - a1 paste - layer diffusion technology, close - tube ga - diffusion technology and open - tube gallium - diffusion technology
隨著摻雜工藝的不斷發展，高反壓晶體管基區的形成經歷了擴硼工藝、硼鋁塗層擴散工藝、閉管擴鎵工藝到開管擴鎵工藝的發展。 -
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。 -
On the base of previous investigation, the article made empiric studying on such connection effect, established estimating indexes such as industrial diffusion degree, then realized estimating such effect on the depth and the direction of the industrial chains
並且對產業的這種關聯效應進行了評價分析的研究，建立了產業擴散（集中）度、產業結構擴散度等指標體系，從而實現了評價產業在關聯作用中對產業鏈條深度和對產業鏈條延伸方向的影響。 -
In the aspect of mortar permeability the author has done some experiments, including the water absorption, porosity, weatherability, anti - freeze - thaw cycle, carbonation and the chloride diffusion experiment, and compared those properties with conventional mortar to testify the modified effects. on the base of these experiments, the method of sem was used to analyze the microstructure and hydration mechanism of polymer modified cement mortar, and the author draws a conclusion that the 9 percent of polymer - cement ratio is the optimum ratio
在改進砂漿的密實度和抗滲性能方面，主要進行了不同聚合物摻量下的吸水性試驗、可透孔隙率試驗、耐老化性試驗、抗凍性試驗、抗碳化試驗，以及對耐久性能影響最大的快速氯離子擴散試驗，並和普通砂漿的相應試驗進行了對比分析，驗證了聚合物砂漿的改性效果。 -
Base contact diffusion
基極接觸擴散 -
Considering the dynamic of spatial transfer of knowledge, the above learning mechanism for cluster also reflects the " knowledge induction - knowledge diffusion " model, which, if run efficiently, will promote clusters " knowledge base to extend and upgrade and their technological capability to continuously evolve. in fact, the formation and operation of the learning division mechanism for cluster has to need support from an extensive policy system, which is constituted of the policy of clustering enterprises, the policy of coordinating institution and public service institution and the policy of local government
事實上，集群技術學習的分工機制的形成和良好運轉需要一個廣義政策體系的支撐，因此本文最後從集群企業、集群中間機構和公共部門以及當地政府三個方面討論了該政策體系的設計問題，以更好地推動集群中的技術學習分工和集群技術能力演進。 -
Moreover, reaction path analysis was accomplished on the fundamental base of the theoretical calculation for mojsi / t phase - interface in the diffusion couple mo2c - si at 1200c. 5. interface stability analysis of solid - state displacement reaction shows that the layered structure of solid - state displacement reaction between mo2c and si ( fig. 6. 8 ) is not stable
利用模型進行的1200 ， mo _ 2c - si擴散偶mo _ 4si _ 3 / t相界面的分析計算，為反應路徑的細致分析奠定了堅實基礎，這也是該理論模型應用於實際束集型結構分析的引人注目之處。
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