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- In this paper,the cubic B-spline curve is introduced to fit the axis of arc dam,and to decide the arc dam shape base on the geometric properties of B-spline curv. 基于B样条曲线的几何特性,在拱坝体型设计中,用3次B样条曲线来拟合拱坝中轴线,用"密切圆包络法"法来计算拱坝的上、游拱曲线,进而确定拱坝体型。
- Probe into Positioning Technique on the Arc Dam 拱坝坝上放线技术探讨
- Joan of Arc was one of France's greatest daughters. 圣女贞德是法国最伟大的女性之一。
- The dam burst under the weight of water. 那水坝在水的压力下决口了。
- Joan of Arc was burnt (alive) at the stake. 圣女贞德在火刑柱上被(活活)烧死。
- The village was swept away when the dam burst. 村庄在水坝决堤时被冲走了。
- A water power station must have a dam. 水电站必须有拦河坝。
- Joan of Arc was made a saint in 1920. 1920年，贞德被追封为圣女。
- In case of flood, the dam can protect us. 在发洪水的时候，大堤可以保护我们。
- The sun appears to move in an arc across the sky. 太阳看起来在天空以弧线运行。
- The lowest part, as of an embankment or a dam. 坡脚最底下的部分，如堤防或坝的
- The water deepened after the dam was built. 堤坝建成后水已加深。
- She tried to dam up her feelings. 她尽力控制自己的感情。
- They have decided to build a dam across the river. 他们决定在这条河上建一座水坝。
- They fortified the dam against the flood. 他们加固了堤坝以防洪水。
- Joan of Arc led a large army to raise the siege of Orleans in1429. 贞德在1429年率大军解除了英军对奥尔良的围攻。
- People came in flocks to see the new hydraulic power station beside the dam. 人们成群结队地来参观水坝旁边新建的水电站。
- The stick of carbon is often used in an electric arc lamp. 碳精棒常用于电弧灯。
- Millions of gallons of water are kept back by the dam. 这个堤坝拦住了滔滔的洪水。
- The iron rod supporting the valances was bent in an arc. 挂窗帘上部短幔的铁棍弯成了个弓形。
