深螺槽 的英文怎麼說

中文拼音 [shēnluócáo]
深螺槽 英文
deep channel
  • : Ⅰ形容詞1 (從上到下或從外到里的距離大) deep 2 (深奧) difficult; profound 3 (深刻; 深入) thor...
  • : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
  • : 名詞1 (盛牲口飼料或飲料等液體的器具) trough; manger (for water animal feed wine vat) 2 (兩邊...
  1. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角旋線)形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻寬尺寸較小而尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義
  2. Countersunk flat head screws - part 2 : penetration depth of cross recesses

    埋頭平頂釘.第2部分:十字凹貫穿
  3. Our products are : various kinds of punches for cross - recess, carbide dies, reducing dies, trimming dies, rolling flat dies for self - tapping serew, machine serew and penetration gage for cross - recess, involved punches and moulds for nonstandard fasteners

    本廠的主要產品大類有各種標準的十字精沖模、硬質合金圓模、縮徑模、切邊沖頭、內六角沖頭、自攻搓絲板和十字量具等(包括承接各種非標釘用沖頭、圓模、栓、母成形用模具) 。
  4. ( c ) for the helical swallow - tailed structures with same groove width, the deep groove depth one which is suitable for the use in a interaction system of high power twts, has the largest coupling impedance and the lowest phase velocity in comparison with the other different groove profiles

    ( 3 )具有相同日寬度的燕尾形結構在度較情況下用作大功率行波管的互作用系統具有最大的耦合阻抗和最低的相速。
  5. Gang channel self - locking nuts, straight, deep counterbore. maximum temperature : 120 degrees c. iso thread

    最高使用溫度沉孔一組直自鎖母. iso
  6. Gang channel self - locking nuts, straight, deep counterbore. maximum temperature : 235 degrees c. iso thread

    沉孔一組直自鎖母.最高使用溫度. iso
  7. Countersunk flat head screws - penetration depth of cross recesses

    沉頭釘.十字
  8. ( b ) when the depth of the groove is relatively shallow, the helical triangle - shaped helical groove has the widest bandwidth, the least dispersion, and the fastest phase velocity

    ( 2 )當度較淺時,三角形的通頻范圍最大,且色散最弱,其中波的相速和群速最大。
  9. The research on the rf characteristics of the conductor - centered helical groove sws. ( a ) in the " cold " system, we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency, the phase velocity and bandwidth are reduced slightly, the structure is more dispersive and the coupling impedance is enhanced

    對具有中心導體軸的矩形慢波系統的高頻特性進行了理論研究: ( 1 )在冷系統中的研究結果表明:頻率較低時,的改變對相速的影響不是很大,隨著頻率的增大相速略有減小,同時帶寬也有所減小,色散變得稍強,耦合阻抗增大。
  10. In this dissertation, we have made detailed theoretical study and numerical computing on some new types of helical groove sws including the conductor - centered rectangle - shaped helical groove and the conductor - centered arbitrarily - shaped helical groove ; several important new conclusions and valuable results are achieved and listed as the followings : 1

    本論文從理論研究和數值計算兩方面對一類新型的具有中心導體軸的矩形慢波系統以及我們提出具有中心導體軸的任意慢波系統進行了入的研究。主要工作成果和創新點在於: 1
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