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| Subject | English | Chinese |
| tech. | center of a circle | 圆心 |
| tech. | center of circle | 圆心 |
| expl. | center of slip circle | 滑动圆心土坡呈圆弧滑动破坏时，弧形滑动面的圆心 |
| expl. | center of the most dangerous slip circle | 最危险滑动圆心通过土坡稳定性演算得出的与最小稳定性系数相对应的滑动弧面的圆心 |
| nautic., tech. | center of turning circle | 回转中心 |
| tech. | center of weir crest circle | 堰顶圆弧中心 |
| agric. | circle of common center | 同心圆 |