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三心椭圆
| 拱
| 三心椭圆 | |
| tech. | pseudo-ellipse |
| 拱 | |
| gen. | arc; arch |
| archit. | foiled arch; bow |
| dril. | hog |
| hydroel.st. | arc; arch |
| space | cove; hogging |
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| pseudo-ellipse (仿椭圆) | |||
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三心椭圆 : 2 phrases in 1 subject |
| Technology | 2 |
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