The Symmetry and Application of Plain Curve 平面曲线的对称性及其应用
The technology for shield directly passing through plain concrete shaft is unprecedented in China, especially under the difficult curve condition. 盾构直接穿越素混凝土竖井的施工技术在国内外尚无先例,尤其整个穿越过程是在曲线情况下进行,这更为盾构穿越增加了难度。
To simulate plain weave fabric brilliantly, yarn model of zigzag ellipse cross section of different size was adopted, geometric solid structure of plain weave fabric was established by B spline curve style technology and Peirce woven fabric model. 为了逼真模拟平纹织物,采用变化尺寸大小的锯齿形椭圆截面的纱线模型,结合B样条曲面造型技术,利用Peirce机织物模型构造平纹织物的几何立体结构。
Results: X ray plain film can observe the angle of scoliosis as measured by Cobb ′ s method and the main curve location. 结果:X线平片可观察侧弯角度(cobb测量法)和主弯部位。
Methods 10 cases of carcinoma and 30 cases of hyperplasia were proved by pathologic perform conventional plain scan, dynamic and lately enhancement, to observe alteration of signal intense of prostate in dynamic MRI, and to draw the time-signal intensity curve of carcinoma and hyperplasia. 方法对经病理证实的前列腺癌10例及前列腺增生30例行常规平扫及动态增强和延迟增强扫描,观察病灶的信号变化并绘制时间/信号强度曲线。
Study on Drainage Modulus in Plain Watersheds by Using Infiltration-runoff Math-theoretical Analysis and Nash's Instantaneous Unit Curve Method 利用降雨入渗产流分析原理和Nash单位线汇流方法进行排涝模数计算的研究
Test Analysis of Plain Weave Double Cam Curve 平纹双踏盘廓线的测试分析