| 基于近场动力学数值方法的冰-吊舱推进器接触判断研究1) | 
| 徐佩, 王超, 郭春雨, 苏玉民, 叶礼裕 | 
| RESEARCH ON CONTACT JUDGMENT OF ICE-PODDED PROPULSOR BASED ON NUMERICAL METHOD OF PERDYNAMICS1) | 
| Xu Pei, Wang Chao, Guo Chunyu, Su Yumin, Ye Liyu | 
| 图1 物质点$ x$与物质点$ x'$之间的相互作用 | 
| Fig.1 Interaction between material particle $ x $ and material particle $ x'$ | 
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