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新华社长沙7月6日电（记者帅才）暑期来临，孩子们有更多时间参加体育锻炼。

二 |     (ECNS) -- A satellite pair with onboard artificial intelligence processing capabilities were successfully launched into orbit in early August, marking the latest milestone in the country’s rapidly expanding commercial space sector.    The Eastern Star link 05/06 satellites, launched aboard a Jielong-3 carrier rocket from the Haiyang Oriental Spaceport, Shandong Province, were jointly developed by Wuhan University, Eastern Star link and Star Vision, two Chinese commercial space and satellite technology companies.    The satellites are equipped with hyperspectral AI capabilities for intelligent data processing in orbit.    Unlike traditional remote-sensing satellites, which send large amounts of imagery back to Earth for analysis, the new satellites can process data directly in space.    According to Song Bingchen, co-founder of Eastern Star link, the technology could shorten information response times from days to minutes and increase data utilization rates from less than 10% to more than 80 %.    However, deploying AI in space presents challenges, including limited power supply, heat dissipation and radiation resistance.    To overcome them, the company has been exploring the deployment of artificial intelligence systems in high Earth orbit and conducting ongoing experiments with in-orbit computing. Its AI hardware payloads have been operating in orbit for more than 2,600 days.    The development reflects the growing role of private enterprises in China’s commercial space sector.    At a private economy forum held in Hangzhou, Zhejiang Province, on Monday, Song said the company’s goal is to “deploy artificial intelligence in space”.    He noted that Hangzhou has brought together aerospace institutions, research centers and space-related companies, creating an ecosystem for commercial space development.    The Yunqi Town area, where Eastern Star link and Star Vision are based, is now home to more than 300 aerospace information companies.    Eastern Star link’s business has expanded to more than 40 countries and regions. Song that added embracing challenges and setbacks is essential for commercial space development and technological innovation.    (By Intern Liu Shuangjing, Zhang Dongfang)                    。记者近日从长沙市部分医院了解到，近期医院骨科收治发生运动损伤的青少年患者增多。专家提醒，青少年暑期运动要注意安全，合理选择运动项目。长沙市第三医院骨科副主任医师张卓介绍，近期发生跟腱损伤的青少年患者增加。有的青少年在踢足球时和伙伴进行激烈身体对抗，发生了跟腱断裂。

三 | 长沙市第三医院骨科二十三病室主任陈松介绍，跟腱是人体最强壮的肌腱，它的主要功能是传导小腿肌肉力量至足部，是支持人体直立、完成跑跳等动作的“主力”。

四 | 突然的蹬地动作、猛烈跑跳等动作容易导致跟腱断裂。跟腱一旦断裂，脚后跟会出现明显的疼痛、肿胀，无法完成单脚踮起脚尖、提起脚后跟的动作，不能正常行走。

五 |

专家提醒，青少年在运动时，如果听到跟腱处有“啪”的断裂声，并且局部出现可触及的凹陷，脚后跟肿胀、疼痛时，就要考虑跟腱断裂的可能，应立即停止一切活动，以免造成断裂的加重，及时到医院进行检查和治疗。

六 | 陈松提醒，青少年在运动之前，应进行充分的热身活动，舒展全身的关节、肌肉，降低受伤的风险；青少年要根据身体条件选择合适的运动方式，避免突然过猛地进行跑跳等动作；青少年在打篮球、踢足球等激烈运动中可以戴相应护具，加强对肌肉和关节的保护。专家提醒，青少年可以找专业教练根据自己的体重、身高、肌肉水平等设计训练方案和计划，还可以到医院运动科进行测试，了解自己的心肺功能情况，并根据自身情况设计科学的运动方案。湖南省人民医院儿科门急诊主任曾赛珍提醒，青少年骨骼相对于成人骨骼来说更柔软，在进行一些激烈运动时更容易骨折变形。青少年可以根据自身生长发育特点，选择慢跑、跳绳、仰卧起坐、游泳、健身操等运动。中南大学湘雅三医院儿科副教授陈志衡建议，青少年在酷暑时节不要进行激烈的户外运动，以免发生严重中暑。

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