發送短信 : Period change investigation of the low mass ratio contact binary BO Ari

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|  \/  ||  | / \ ||  \ \/ //   | ||__   |  --  // 
| .  . ||  | \_/ ||   \  //    | ||__   |  --  \\ 
|_|\/|_||   \___//     \//     |_____|| |______// 
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