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| 模拟失重环境的封闭式水池; 航天训练池; 水池; 封闭式水箱 (宇宙航行员在内进行失重锻炼); 封闭式游泳池 (模似失重环境的) | |||
| гидробассейн: 5 phrases in 1 subject |
| Technology | 5 |
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