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- Aim at lacking a kind of method for drawing intersecting lines efficiently in the petrochemical engineering construction, invented a kind of compasses that can draw the opening curve on the non-flat container wall. 摘要针对石油化工设备建造中，缺乏一种高效的器壁开孔画曲线方法的问题，研制了一种能在非平面器壁上画开孔曲线的画线规。
- At last, a better idea is presented: In fact, the problem of computing the shape distance between two open curves can be changed to the problem of a functional extremum, therefore, we can get the shape distance through solving an Euler equation. 本文在最后还证明了这样一个结论，两条平面开曲线的形状距离的计算问题可以转化为一个泛函的极值问题，于是通过解一个欧拉方程就可以求出两条开曲线的形状距离。
- an open curve formed by a plane that cuts the base of a right circular cone. 一个平面与正圆锥体的底部相交而形成的不闭合的曲线。
- Pea pods burst open when overripe. 豌豆过熟就会爆裂。
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- We bivouacked on the open plain. 我们在开阔的原野上露营。
- The Approximation of Singular Integral Along An Open Curve by Complex Splines 开口曲线上的奇异积分近似求积公式
- Thank you. How long will this offer be open? 谢谢。这个报价的有效期多长？
- Open the shutter and see what the weather is like. 打开百叶窗，看看外面的天气如何。
- The fresh air blew in from the open window. 新鲜空气从开着的窗户吹进来。
- The shop is open from this day onwards. 该店从今天起开始营业。
- On Riemann Problem of Hyperanalytic Function in the Jordan Open Curve 超解析函数在Jordan开曲线上的Riemann问题
- Please open a window to allow the air to circulate. 打开窗子让空气流通。
- This drawer is too tight for me to open it. 这抽屉太紧了，我打不开。
- You may open a current account at a bank. 你可以在银行开立一个活期帐户。
- I asked the man opposite if he would open the door. 我问对面的人他愿意不愿意开门。
- She contributed to the fund with an open heart. 她向基金会捐款，慷慨解囊。
- I'd like to open a current account with you. 我想在你们这儿开一个活期存款帐户。
- He will throw open his door to any of your friends. 凡是你的朋友他无不竭诚欢迎。
- David gave the door a kick and it flew open. 大卫一脚向门踹去，那门猛地开了。
