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| 球面角度立体角单位 | |||
| 球面角度 (立体角的单位) | |||
| 球面度指立体角弧度 | |||
| 球面角度立体角国际单位; 球面〔角〕度; 球面弧度 | |||
| 球面角度 (SI 制立体角单位); 球面角度 | |||
| 球面角度立体角单位 | |||
| 球面角度 | |||
| 球面度; 立体弧度 | |||
| 球面度 (立体角单位); 立体弧度 (sterad); 球面角度 (sterad, 立体角单位) | |||
| 球面角度 (立体角单位); 瓦特 (球面度); 立体弧度立体角单位 | |||
| English thesaurus | |||
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| sr | |||
| sr (angular measurement) | |||
| steradian: 1 phrase in 1 subject |
| General | 1 |
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