匹配弧 的英文怎麼說
中文拼音 [pīpèihú]
匹配弧
英文
match arc-
Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results
文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比:電性能相當;波導管結構更加簡單,容易加工,便於安裝.文中給出圓突-矩形波導中主模場,圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣,縫隙電壓相位為同相分佈,輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖,理論與實驗相吻合Patent control technology of dynamic characteristics and waveform, hard arc, stable welding current, little spatter, good welding surface, optimized matching parameters, welding speed increased by 100 - 200 %
專利動特性及波控技術,電弧挺度大,焊接過程穩定,飛濺少,成型美觀,優化參數匹配,焊速可提高100 - 200 %The handle must be symmetrical and centered on the blade, with even radii on sides and end, clean fit on all matching surfaces with no checks or splits around the pins
刀柄必須以刀為中心對稱,邊緣和尾端有平滑的弧度,匹配面干凈,鉚釘處無開裂、阻礙。In the data preprocessing step, by removing redundant data, dispersing inlet and outlet circle, offsetting the blade profile, data format is unified. in the case that measured profiles match theory profiles, each error item is attained by using appropriate arithmetic
數據預處理部分經過葉片理論型線的冗餘點剔除,進、出汽邊圓弧離散以及理論型線的偏置等步驟,可實現理論型線與實測型線數據格式的統一;最後通過葉片的理論型線和實測型線重合度匹配等演算法得到實測葉片的各主要誤差項。Abstract : causes for porosity occurrence in welding seams were investigated by means of statistic analysis of the porosity degree of welding seams of the submerged arc weld spiral pipes made with x65 and q235 steels from different works and mating weld materials, and of selecting proper mating material on the basis of different oxygen contents in the base metals
文摘:通過對不同廠家生產的x65級和q235鋼材與不同的焊接材料相匹配所生產的螺旋埋弧焊管焊縫內的氣孔進行統計分析,並從鋼材中氧含量的多少及其焊接材料匹配的不同,來研究焊縫中氣孔產生的原因。分享友人