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- From the strong embeddings of some graphs,a small circuit double cover can be obtained. 其中部分图类的强最大亏格嵌入提供该图的一个少双圈覆盖。
- The paper introducing my some researched results on list colorings and cycle double cover conjectures of graphs respectively is divided into two parts. 这篇文章分为两部分，分别介绍了有关图的列表着色和双圈覆盖猜想的一些研究结果。
- This is equivalent to an ordinary (non-projective) representation of the double cover of SO(p,q, R ), which is a real Lie group called the spinor group Spin(p,q). 是旋转群(李群SO(n;R) )的投影表象中的元素，或更广义地说，是SO(p;q;R)群的投影表象中的元素，其中p + q = n for spinors in a space of nontrivial signature.
- The rubber product:rubber footmat,rubber buttons,shockproof mat,rubber washer,rubber accessories,silicone rubber glue,airproof mat,glue stick,electric glue,gramary glue,powerful glue(double cover). 主要的橡胶产品有：魔术帖、硅胶帖、导电胶、强力双面胶、胶棍、脚垫、母扣、密封圈、垫圈及防震胶圈、橡胶杂件等。
- Design of Finger Conical Surface Twice Covered Cylinder Worm Drive Worm Wheel Hob 指状锥面二次包络圆柱蜗杆传动蜗轮滚刀的研制
- Near-Triangulations of Small Circuit Double Cover with at Most n-2 至多n-2圈二重覆盖的近三角剖分图
- He is working double tides to finish his essay. 他日夜苦干，赶写他的文章。
- I do not realize it is a double feature. 我原先不知道这是双片连映。
- Double agents live in a perpetual state of fear. 两面派永远过着提心吊胆的生活。
- I want a double room with a view. 我要一间能看到风景的双人房间。
- He was so fat that he had a double chin. 他胖得有双下巴了。
- The carpet is too thick to double up. 这地毯太厚没法折叠。
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- In this case, I can double for penalty. 假如这样的话，我可以叫加倍了。
- Can you tell me the rate for a double room, please? 请告诉我一间双人房的费用可以吗？
- The soldiers came at the double. 士兵们是急行军来的。
- A couch performs a double service. 躺椅有双重的服务。
- Look, double yellow lines you mustn't park here. 喂，这是双黄线--不能在这儿停车。
- Please double up the chair and put it aside. 请把椅子折起来放在一边。
