freely supported 中文意思是什麼
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The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell. then the predigested model, i. e., bended beam, used in qualitative analysis was proposed, and its deflection and stress formulas under the freely supported condition were set up. based on an off - axis aspherical primary mirror, the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r, position s of concentrated load p and geometry length l of arc was analyzed
根據這一設想，本文建立了超薄鏡的數學模型?薄殼，並提出了強制力作用下超薄鏡的簡化模型?曲梁，推導了曲梁在簡支情況下受力變形的撓度公式，並結合一個實例，計算出曲梁變形后與所需非球面的面形殘差（ rms ）在子午方向與曲梁弧長l 、曲梁半徑r及集中力位置s的關系及滿足面形精度的r和s范圍，分析了弧矢方向的rms ，得出了同時滿足子午和弧矢方向面形要求的l 、 r和p 。 -
Tools using soap to enable interoperable software are inexpensive, freely available, and widely supported
利用soap以支持軟體彼此協同工作的工具不僅價格不貴、可隨意獲得且被廣泛支持。 -
Based on all kinds of professional components of gis can be seen in the market, which are mapobjects and arcobjects of esri, mapx of mapinfo, geomedia of intergraph, mapgis of wuhan, supermap of peking, etc. the functions and background of the electronic map system, arcgis, which is an object - oriented program language, is integrated the latest computer technologies and gis technologies. ao is object oriented language, supported by the functions of arranging, analysis, display of spatial data and enhances the application efficiency, most users, which are not familiars with the knowledge of complicated concept and operation of gis, can use it freely. so the author selects vb and ao to develop application system of gis
分析市場上可以看到各種各樣的gis專業組件，例如esri的mapobjects和arcobjects 、 mapinfo的mapx 、 intergraph的geomedia 、武漢的mapgis 、北京的supermap等，從人口電子地圖系統的產生背景和功能要求出發，根據arcgis將目前前沿的一些計算機技術、 gis技術很好地融合起來，並且由於ao是使用面向對象技術的開發語言，且又提供完備的空間數據的分析、處理、顯示等功能，可以有效地提高應用系統的開發效率，且具有良好的外觀和完善的功能，使用戶不再需要復雜的gis概念和操作就可使用，所以，本系統的研製選擇了vb和ao相結合的開發方式。 -
However, the pre - stressed anchor cables on the upper part of the piles make the whole stabilizing system like freely supported beams or some other h yperstatic structures. with the number of restraints increasing, it makes much easier to control the displacement of the piles and to reduce the bending moments and shearing forces along the piles to a certain extent
增加預應力錨索后，整個結構體系接近簡支梁或其它超靜定結構，隨著約束的增加樁身的位移控制變得容易許多，同時樁身內力值也在一定程度上減少較多。
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