螺形掃描 的英文怎麼說
中文拼音 [luóxíngsǎomiáo]
螺形掃描
英文
helical scanning-
Abstract : by means of metallographical examination and sem, the microstructure characteristics, macro - and microfractographs of the brittle broken wheel hull bolt of bj212 automobile have been studied. the results show that the thin - headed screw, with excessively deep carbonitriding layer and hardening layer, has less resistance to brittle fracture in the thin area of its head. at the root of the head connecting the stem, a tensile stress may emerge owing to the non - even quenching stress. those are the two reasons for low torque fracture of bolt
文摘:藉助金相、掃描電鏡等手段對低扭矩脆斷的bj212汽車輪殼螺栓的金相組織特徵，宏觀和微觀斷口形貌等進行了研究，結果表明：這種頭部薄的螺栓，滲層和淬透層過深，使頭部薄區脆斷抗力降低，在頭部與桿的根部，由於淬火應力不均勻導致根部產生拉應力，均是導致螺栓低扭矩斷裂的原因。After the calculation, the scan efficiency of the hexagon scan is up to 11. 1 % than raster scan. ( 4 ). in the following parts it analyzes the every factors that affect the capture scan speed, makes the simulation, and sum up the initial simulation result. there are 65 simulation programs made by matlab / simulink and c
結果表明:六邊形（ hexagon ）掃描方式比分行式螺旋矩形掃描方式的掃描效率提高了11 . 1 % ; （ 4 ）分析了各種情況對捕獲掃描速度的影響，並進行了模擬，得出了初步的模擬實驗結果。( 2 ). according to the system indices and requirements together with the technology characteristic, it researches the capture possibility of apt capturing system. then it introduces the common scan methods, such as raster, spiral, raster spiral, rose and lissajo. ( 3 ). it makes a detailed simulation analysis of the raster and spiral scan, analyze the connection between capture probability, capture time, system index at different capture resolution angle, capture range, vibration angle extent and terminal location distributing mean square deviation
其中對幾個關鍵部分進行了詳細分析:計算了目標角反射器的激光雷達散射截面（ lrcs ）值，研究了qd與ccd對目標位置角度的計算方法和空間解析度; （ 2 ）根據系統指標和要求並結合現有國內技術特點研究了apt捕獲系統掃描的捕獲概率問題，然後分析了幾種常見的掃描方式:矩形（ raster ）掃描、螺旋（ spiral ）掃描，矩形螺旋（ rasterspiral ）掃描，玫瑰形（ rose ）掃描以及李薩如形（ lissajo ）掃描; （ 3 ）對分行掃描和螺旋掃描進行了詳細的模擬分析，分析了它們在不同捕獲分辨角、捕獲范圍、振動角振幅和終端位置分佈均方差時的捕獲概率、捕獲時間與系統常數之間的關系。Yield locus is analyzed when antenna is controlled under either pt mode or at mode. double trapezium velocity locus is designed for pt mode while the helix search algorithm is designed for at mode
對程序跟蹤（ pt ）模式和自動跟蹤（ at ）模式下星間鏈路天線的運動規律進行分析，設計了梯形速度軌跡和螺旋掃描運動軌跡。In this paper, a lot of macro and micro fracture sections under equal and variable amplitude loads are analyzed on 40cr high - strength bolts by use of scan - electronic microscope. its fatigue mechanism is known fundamentally
本文以螺栓球節點網架中最常用的40cr高強螺栓為研究對象，藉助掃描電子顯微鏡等先進儀器對40個常幅及變幅疲勞試件斷口進行了宏觀及微觀形貌分析，基本摸清了其疲勞破壞的機理。Methods : spiral ct ( sct ) scanning technology, digital image transfer and transcription were used to obtain the initial 3 - d data of the upper central incisor
方法：採用螺旋ct掃描、數字影像傳輸與轉錄方法，獲得中切牙三維形態的原始數據。分享友人