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- A series of convenient methods for the preparation of the paper-folded regular octahedron, regular tetrahedron, and regular cubic cone are presented here. 介绍纸折正四面体、正八面体和正方锥形的简易制作方法，并推广应用于制作天然硅盐的多种复杂阴离子结构及某些多酸阴离子结构的模型。
- This paper tries to generalize the throwing objects from the one dimension pin to the convex curve in two dimension,and even the three dimensional regular tetrahedron and regular hexahedron. 在蒲丰投针问题的基础上,把投掷物由一维的针推广到二维的凸曲线,三维的正四面体、正六面体;
- Miniaturize the endoscope localizing sensor by regular tetrahedron shaped differential magnetic dipoles 用四面体结构磁偶极子对内窥镜定位探头微型化的研究
- That maths exam I took was a regular brain drain. 绞尽脑汁的数学测验，我真是绞尽了脑汁。
- I must insist on more regular hours. 我必须强调起居定时。
- The rebels made regular attacks on the railways. 叛军不时地袭击铁路。
- He comes back to see us at regular intervals. 他每隔一段时间就回来看看我们。
- The computer gave a regular bleep. 计算机发出有一定节律的哔哔声。
- I am a regular reader of this newspaper. 我是这份报纸的长期读者。
- He works hard and keeps regular hours. 他工作努力，生活很有规律。
- He is a regular worshipper at that church. 他常去那个教堂做礼拜。
- She's a regular beauty, is not she? 她是个十足的美人，可不是吗？
- She's a regular beauty, isn't she? 她是个十足美人，可不是吗？
- The boy is a regular mischief in school. 这男孩在学校里是一个十足的淘气鬼。
- He made a regular visit to his parents. 他定期看望父母亲。
- The store has a lot of regular customers. 这家商店有许多老主顾。
- He is unwilling to depart from regular practice. 他不愿意背离常规。
- The Rubik's is a toy in the shape of a tetrahedron. 魔方是个四面体的玩具。
- You'll like Tom. He's a regular guy. 你会喜欢汤姆的。他人很好。
- Do you want regular or king size? 你要一般尺寸的还是特大尺寸的?
