In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement
在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導
體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回
轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回
轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。
In addition, java3d can only accomplish the regular geometry sculpting and ca n ' t accomplish the irregular geometry sculpting. to solve this flaw, a new way of sculpting the gyre - solid and changing - section - brace by approaching the solid with small slice is put forward. at the same time, rendering and third dimension disposing are settled in this paper
另外，在系統開發過程中，針對java3d三維造型功能類中僅包含標準幾何形
體的問題，這里用四邊形面片逼近曲面的方法解決了回
轉體和變截面曲柄的三維建模，以及這種建模方式下的渲染和真實感處理問題。
Optimized in its structure, and can be used to rough polishing, finshing polishing and 11nall m polishing of all kinds of gyroidal - shape metal ware
2mb414c拋光機是2mb4140系列拋光機第三代產品，它為2mb4140a拋光機的更新換代產品，繼續保留2mb4140a的性能特點，但結構更優化，用於各種回
轉體形狀金屬器皿的粗精拋光和精細拋光。
This is a good means to work with the helicoid part, it is high precision
該路線精度高，適合於回
轉體零件的曲面逆向設計。
Description and input of parts process database, and process deduce and illation etc. on a basis of analyzing turning parts " composing characteristic, adopting the form describes, the form factor ' s definition & coding for parts was realized, the information model of parts was formed, and the inputting design of parts information was accomplished
在對回
轉體零件構成特性分析的基礎上，採用形面描述法的思想實現了零件形面要素的定義、編碼及其描述參數的確定。構造了零件信息模型，並以此模型為基礎完成了零件信息的輸入與存儲設計。提出基於關系數據庫的工藝決策模型，實現了工藝知識數據與工藝決策程序的相對分離。
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（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，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
Secondly, the machining of the rotatory part was taken as an example
其次，列舉了回
轉體曲面在該原型系統中的具
體應用。
The holders surged further ahead after the vault where defending all - round champion yang wei ' s explosive twisting effort notched 16. 525, the day ' s highest score on that apparatus
在跳馬項目中，全能衛冕冠軍楊威以其具有爆發力的空翻
轉體拿到了16 . 525分的最高分，進一步拉開了與日本隊的距離。
In this article, through using oobject - oriented technique, and on the base of deep investigation of second develop technique of autocad r14, we roughly realize the integration of feature - based design and manufacturing of circumgyrated part. by using object - oriented language visual c + + and objectarx as develop tool, and by using access 2000 database as background support, we roughly realize the system of feature - based design and manufacturing of circumgyrated part, thus realizing the integration of cad / capp / cam efficiently
本論文運用面向對象的技術，通過對autocadr14二次開發技術的深入研究，基本實現了基於特徵的回
轉體零件設計、製造的一
體化；採用面向對象的編程語言visualc + + 6 . 0和objectarx作為開發工具，並以access2000數據庫作為后臺支撐，初步建立了一個基於特徵的回
轉體零件設計和製造系統，從而實現了cad capp cam的有效集成。
This paper attentatively studies the theory of traveling bubble cavitation noise emitted from high - speed underwater self - navigator of schiebe body
本文針對回
轉體形水下高速自主航行器產生的流動泡類型的空化所輻射的噪聲理論進行了探索性的研究。
It was through precise mathematical deduction, data imitation, and analysis to experimental data that this topic is studied. this dissertation is theoretically instructive and practically useful, to a certain extent, to the traveling bubble cavitation noise around a schiebe body
全文通過嚴密的數學推導，模擬和實驗數據分析等方法實現對這一課題的研究，對于回
轉體流動泡類型的空化噪聲具有一定的理論指導意義和現實應用價值。
Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method
首先論證了本項研究的意義，價值，背景和方法，然後推出了單空泡輻射噪聲聲壓，聲壓譜和功率譜，針對回
轉體流動泡空化噪聲的具
體情況，選擇了雙指數模型作為單空泡潰滅的數學模型，進一步建立了無干涉條件下的群泡輻射噪聲的數學模型，並用統計的方法分析了空泡潰滅時的多峰值和反彈現象。
The manufacture system of filament winding ( fw ) and fiber placement ( fp ) is the one of advanced equipment for frp products. it can be used to produce the products of the positive curvature gyration bodies, such as container cylinder, oil tank, tube, orb, cone, assembled body and so on. furthermore, it is more suited to machining some products of the complex bodies such as the surfaces of the negative curvature gyration bodies, the shell components which have slots and reinforced tendons
纖維纏繞/鋪放聯合製造系統是纖維增強塑料（ frp ）製品生產的先進製造裝備之一，可用於製造如圓筒容器、儲罐、管、球、錐形
體或組合形
體等正曲率回
轉體的製品，更適用於製造含有負曲率的回
轉體表面、具有深槽、加強筋的殼
體構件等外形相對復雜的纖維增強塑料製品。
Yongda ' s high quality foundry processing equipments include centrifugal casting machine, double head centrifuge, carrying rollers centrifuge, single head centrifuge, etc., which basically satisfy the need for centrifuge casting of revolving body castings of domestic large and medium enterprises
永達的高質量的鑄造專用工藝設備有大型立式離心鑄造機、雙頭離心機、托輥離心機、單頭離心機等多臺，這些工藝設備基本滿足了國內各中大型企業回
轉體鑄件離心鑄造的需要。
Programme in governance and political transformation
政府與政治
轉體研究
Governance and political transformation
政府與政治
轉體學
Ideal polarization rotator
理想偏振
轉體
An auto - unload lathe jig for machining gyrotary parts
回轉體零件自卸料車床夾具
