A | 中新网成都8月21日电 (记者 刘忠俊)8月21日，“红色记忆·英烈丰碑”四川省长征英烈专题展主题活动在四川省雅安市石棉县中国工农红军强渡大渡河遗址启幕。
B | (ECNS) -- A student satellite team from Harbin Institute of Technology successfully launched its self-developed Lilac-3 satellite into orbit, marking a milestone for a young team involved in independent satellite development. The satellite was launched aboard a Gravity-1 Y4 carrier rocket from waters near Shanghai at 10:54 a.m. on July 22. Telemetry data was successfully received at 11:41 a.m., confirming the mission’s success. Lilac-3 features an ultra-flat disk-shaped design, with its main body measuring less than 5 centimeters in thickness. The design allows satellites to be stacked more efficiently during launches and is expected to support future low-orbit constellation deployment. When the project began, about 70% of team members were undergraduates, with an average age of 22. Most had no previous experience with complete satellite engineering projects and learned new technologies during the development process. After the first Lilac-3 failed to enter orbit due to a launch failure earlier this year, the team rebuilt the satellite within three months, improving its performance and adding new experimental tasks. Founded in 2012, this team is the first university student team in China to independently complete satellite design, development and mission management. Lilac-3 is the fourth satellite successfully launched by the team. (By Intern Liu Shuangjing, Zhang Dongfang) 
。活动以“致敬·英烈”“传承·信念”“追寻·足迹”三个篇章铺展红色叙事，在大渡河畔缅怀先烈、淬炼初心、勇担使命。
主题活动现场。
C | 四川省退役军人事务厅供图 据了解，本次活动由退役军人事务部烈士纪念设施保护中心、四川省退役军人事务厅、四川省军区政治工作局主办。来自省、市(州)退役军人事务部门的干部职工代表，烈士遗属、现役军人、退役军人、大中小学生代表等230余人参加活动。 在中国工农红军强渡大渡河纪念碑前，全体人员整齐列队、肃立凝神，齐声高唱中华人民共和国国歌。国歌唱毕，全场默哀、行三鞠躬礼，深切缅怀为民族独立、人民解放英勇献身的长征英烈。随后，《献花曲》奏响，代表们依次敬献鲜花、瞻仰纪念碑，致敬红军将士舍生取义、向死而生的崇高气节。 缅怀仪式后，一堂沉浸式“纪念碑下的思政课”在大渡河畔开讲。“红军不怕远征难，万水千山只等闲……”全体人员齐声诵读《七律·长征》，感悟红军将士攻坚克难、百折不挠的革命意志。活动现场，四川长征干部学院教师杨蕊讲述了革命故事，再现革命先辈临危受命、智勇突围的赤胆忠心；教师王兴蓉、武振坤宣讲了英烈事迹，还原十七勇士强渡大渡河、奋勇冲破天险的英雄壮举。 思政课后，全体人员在英烈讲解员、红领巾讲解员引导下，有序参观“红色记忆·英烈丰碑”四川省长征英烈专题展。
D | 展览以红军长征在四川的历史脉络为主线，设12个专题单元，聚焦长征途中牺牲的英烈群体，整合珍贵文献档案与史实史料，系统呈现四渡赤水、巧渡金沙江、强渡大渡河、飞夺泸定桥、翻越雪山、跋涉草地等红军长征在四川的关键战役和历史节点，讲述红军英烈浴血奋战、舍生忘死的感人故事，展现四川各族民众拥军支前、军民同心的鱼水深情。观展人员驻足凝视、认真聆听，在一件件珍贵史料、一段段峥嵘往事中触摸红色历史、汲取奋进力量。 讲解员向学生们讲解烈士的故事。四川省退役军人事务厅供图 活动期间，代表们还实地瞻仰中国工农红军强渡大渡河遗址，参观中国工农红军强渡大渡河纪念馆，重温红军长征在四川波澜壮阔的革命历程。 四川省退役军人事务厅负责人介绍，该专题展是退役军人事务部全国长征英烈展重点展陈之一，也是纪念长征胜利90周年、活化利用四川红色资源的重要载体。
E | 本次专题展为期一个月，结束后还将走进学校、军营、红色场馆等进行巡展。(完) 【编辑:蔡星雨】。
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