放尺率 的英文怎麼說
中文拼音 [fàngchǐlǜ]
放尺率
英文
augmentation coefficient-
Abstract : experiments were made on a ultrasonic machining tool with work - piece adhered to ultrasonic transducer head, to machine micro - holes on hard and brittle materials such as soda glass and si, to study the effects of tool materials , work - piece materials , amplitude , machining load , slurry concentration , tool length and the size of work - piece on machining rate and wear ratio. in this experiment, the micro - tool was made through wedg
文摘:通過以wedg放電加工手段製作微細超聲加工用工具,在採用工件加振方式的微細超聲加工機上對碳酸玻璃、半導體硅等硬脆材料試件進行微孔加工的實驗,來探討在某一特定加工條件下工具材料、工件材料、工件的振幅、加工靜載荷、磨料懸浮液濃度、工具長度及工件尺寸等重要因素對加工速度、工具損耗率的影響,為微細超聲加工技術的實用化提供參考依據。Do some necessary calculations and decide on the general scheme of compton back - scattering imaging scanner to the real wall inspection. include the selection of radioactive source, the calculation of compton back - scattering beam, the calculation of the basic condition of finding out the different materials and the determination of some important parameters as well. 3
其主要內容包括入射源的選擇,散射粒子的理論計算,發現異物的最低條件計算以及系統的一些重要參數的確定,主要包括:放射源的選擇,散射角的確定,后準直器的形狀與尺寸,前準直器的尺寸,前準直孔的大小,檢測器的種類與型號,檢測器的效率等。Since the shallow depth excavation is the main factor to cause ground settlement in shenzhen subway tunnel, this paper discusses some corresponding countermeasures including the improvement of ground property, appropriate draining of groundwater, scheduled excavation depth and width, etc, to control strata distortion and surface settlement, and argues that these measures are expected to effectively control surface settlement while constructing city subway in soft ground excavation
摘要針對深圳地鐵淺埋暗挖隧道施工中影響地表下降及地層變形的因素,提出了遵循「十八字」原則、改善土體特性、適度排放地下水、根據地層條件選擇施工方法、增大左右線隧道開挖面的距離、合理確定開挖進尺、提高施工效率、加強初期支護、及時施作二次襯砌等對策。The interpolate technology just like a " ruler ", the resolving power of the " ruler " affect that the sampling points are arrayed correctly on time axis, and is determined by the multiple of the double slope integral amplifier. so it is core in the whole project. the project apply the complicated program logical device ( cpld )
內插技術的應用使得隨機采樣理論能夠得以實現,內插技術相當于測量用的「尺子」 , 「尺子」最小分辨能力決定了最後采樣點重新在時間軸上位置排列的真實可靠程度,這里尺子的最小分辨能力是由雙斜率積分時間擴展器放大倍數決定的,所以說該模擬充放電放大電路在整個方案中是個很關鍵的部分。The experiment indicates that the laser sintering power, the thickness of sintering layer, the placement angle influence the surface precision greatly, and scanning space influence the dimension precision of the part greatly
試驗表明,激光燒結層厚度、製件擺放角度、激光燒結間距等對表面精度的影響大。激光燒結功率、製件的形狀尺寸等對製件尺寸精度影響大。The ratio of the size of an image to the size of an object
放大率圖像的尺寸和實物尺寸之間的比率The drive stage is made up of cascode class - f topology. a “ big ” mosfet is used in the class - e output stage. the thesis did the simulation of the pa by ads with the tsmc 0. 18 m rf cmos model, and completed the layout of the pa
本文設計了一種新穎的射頻cmos功率放大器,採用兩級差分結構,用f類共源共柵結構作為驅動級,輸出級採用大尺寸mos管的e類功率放大器。Transmit / receive ( t / r ) modules is the base of the modern radar. the paper puts forth a design scheme according to the target including t / r switch, up conversion, power amplified, low noise receive and down conversion. the dimension is restricted to 106 89mm through scheme comparison and the existing experiment condition, the final products arrive at the target we expect with millimeter hybrid integrated circuit
收發t / r組件在當今雷達系統中佔有舉足輕重的地位,本文根據設計指標提出了毫米波前端的設計方案,系統功能上要求完成收發雙工、上變頻和功率放大、低噪聲放大和下變頻功能,外形尺寸為106 89mm ,通過綜合方案比較,結合自身條件,選取了毫米波混合集成電路形式。Containing the scaling ratio between the current and design - time scaling automatic scaling dimensions
,包含當前和設計時縮放自動縮放尺寸之間的縮放率。Secondly, we study an improved nagel - schreckenberg model with open boundary condition. we analyze the influence of the boundary condition 、 safety distance and deceleration probability to the traffic flow. thirdly, we propose the three branch road modle without control for the confluence phenomena of cars
接著,研究了一種改進的ns模型在開放邊界條件下,安全距離,剎車概率,延遲起動對交通流的影響,較為準確的再現了真實交通中的大尺度堵塞及緩解現象。In the experiment of this thesis, a high accurate measurement system based on linear array ccd is made up ; the illumination system is improved, and curve fit is adored to obtain the margin value. finally, the size of the obtained object is less than the pixel dimension according to lens magnification p
本文建立了基於線陣ccd的線徑高精度測量系統,在對照明系統改進的基礎上,採用曲線擬合求拐點的方法來提取信號的邊緣特徵,最後根據透鏡的放大倍率得到低於ccd像素尺寸直徑。分享友人