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- A complete methematicdl model of the exmponential curve type shearer drum hub and vane and a CAD method for expansing helical vare are descrided . 以指数曲线滚筒为代表，建立了异形滚简及其螺旋叶片的完整数学模型。
- On the basis of analytic geometry, the projection curve types of intersection lines of cone and cylikder, cone and cone on V plane is hyperbola and cone and sphere is parabola. 中专制图教科书中 ,对圆柱与圆锥轴线垂直相交时 ,相贯线投影作图 ,大都采用先找特殊点 ,再用辅助平面法找一般点 ,最后判断点的可见性并描点连线的方法。
- ROC analysis showed the sub curve area of the combined standard was biggest, followed by the morphologic one and curve type one in sequence, with the Az values 0. 967, 0. 963 and 0. 908, respectively. 三种判定标准的评定结果经ROC曲线分析，采用结合形态学及动态增强时间一信号强度曲线标准AZ值最大，其次分别是形态学标准，动态增强时间一信号强度曲线标准，其AZ值分别是0.;967。 0
- The structure simulation test, thick board welding test, parts strength test and bolt shearing test in design were carried out, which surmounted the design difficulties such as lamellar tearing and considered Eiffel effect of curve type tower. 设计中进行了结构模拟试验、厚板焊接试验、部件强度试验和螺栓剪切试验等,克服了层状撕裂等设计难点; 考虑了曲线型塔的埃菲尔效应。
- When the interval curve type of adjacent well is cylinder helical,the constraint equation of the near distance spot of adjacent well is simplified further by mathematical manipulation. 在邻井井段曲线类型为圆柱螺线时,通过数学变换,将邻井间最近距离点的约束方程转化为一个形式更简单的约束方程;
- The falling star described a long curve in the sky. 流星在空中画出了一道长长的弧线。
- Coral is formed by certain types of polyp. 珊瑚是由某些水螅体构成的。
- A line segment that joins two points on a curve. 弦将两点用曲线连接起来的曲线段
- There are two types of rocks in this area. 这个地区有两种类型的岩石。
- We can group animals into many types. 我们可以把动物分成很多种类。
- His spine developed a slight curve. 他的脊柱有点弯曲。
- We have many types of cosmetics for sale. 我们有许多种化妆品待售。
- The coast sweeps (away) northwards in a wide curve. 海岸呈一大弧形向北伸展。
- We stock all types of fur coats. 我们有各种皮衣供应。
- The place was heaving with showbiz types. 这地方一直聚集著一帮娱乐圈里的人士。
- A bend or curve, especially in a shoreline. 弯曲，弓形弯曲或弓形，尤指海岸线
- Some types of plants are widely distributed. 有些植物分布得很广。
- A wicked curve ball; a wicked imitation. 漂亮的曲球; 惟妙惟肖的模仿
- New orders for these types of machine have almost dried up. 对这种类型机器的新订货几乎全部停止了。
- Full-grown and bargirl having S type curve! 首页>>性感MM>>丰满且有S型曲线的酒吧女！
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
