你tm别 了| 神舟开启十八号 电源已历“三部曲”
Introduction:
Losing someone dear to our hearts is a heartbreaking experience that leaves a void which can never be filled. It is with heavy hearts that we remember and reflect upon the memories of a beloved person in our lives who is no longer with us. This article aims to pay tribute to the person we have lost, offering three distinct sections that delve into their legacy and impact. Though they may no longer be physically present, their spirit and influence will forever remain etched in our hearts.
Section 1: A Life Well-Lived
Every life carries with it a unique story, and the life of [Name], the person we mourn today, was no exception. From humble beginnings to remarkable achievements, their journey left an indelible mark on all those fortunate enough to have crossed paths with them. Their unwavering determination and resilience in overcoming challenges inspired everyone around them. Whether it was excelling in their chosen career, fostering meaningful relationships, or contributing to the community, their life embodied the essence of leading with purpose and leaving a lasting impact.
Section 2: Unforgettable Memories
As we reflect upon our cherished memories with [Name], an incandescent tapestry of moments floods our minds. From laughter-filled gatherings to profound conversations, each interaction with them was a testament to their vibrant personality and infectious enthusiasm. They possessed an innate ability to lift the spirits of others, showering warmth and love upon all those around them. In their presence, troubles melted away, replaced by a sense of joy and serenity that will stay with us forever. It is here, within the treasure trove of memories, that their spirit continues to shimmer and reside.
Section 3: The Legacy Lives On
Though we grieve their absence, it is through the continuation of their legacy that we honor them. [Name] instilled within us invaluable life lessons; they taught us to embrace compassion, resilience, and gratitude as we navigate our own journeys. Their unwavering belief in the human spirit inspires us to push beyond our limits and seek greatness in all aspects of life. As time goes on, their legacy will manifest in the lives they touched, ensuring that their spirit lives on through our actions and deeds.
Conclusion:
In bidding farewell to [Name], we acknowledge the pain of their absence while finding solace in the enduring impact they have left upon us. Their influence continues to shape the person we are today, guiding us towards a brighter future. As we navigate the path ahead, we cling to the memories, lessons, and virtues they imparted. In doing so, we celebrate their life, honor their legacy, and keep their spirit alive in our hearts. Though we may never truly get over their loss, we find strength in knowing that we were blessed to have shared a part of our journey with them, for memories of their presence will remain eternally cherished.
你tm别 了
中新社上海4月25日电 题：神舟开启十八号 电源已历“三部曲”
中新社记者 郑莹莹
神舟十八号载人飞船25日成功发射。扬“帆”宇宙，让航天员有热饭热菜吃，神舟飞船的电源系统(简称：电源)发展已历经“三部曲”。
20多年持续探索
回顾神舟飞船的历史，从1999年“神舟一号”飞天开始，20多年来，电源伴随中国载人航天工程各个阶段的任务需要而成长。
在中国载人航天工程的第一个阶段，从“神舟一号”到“神舟七号”的电源经历了一段从零起步、从无到有的过程。
在吸收海内外研制经验及教训的基础上，神舟飞船电源研制团队经过多轮论证和攻关，确定了多种电源(包括硅太阳能电池、镉镍蓄电池和锌银电池)联合供电的飞船电源系统模式，整船供电能力大于1200瓦，相关探索填补了当时中国空间电源发展的多项空白。
接下来的几艘飞船，电源研制团队又相继攻克了“不同类型的电源并网”“满足扩大发射窗口的需求”等难题，实现了让神舟飞船“上得去”“回得来”的目标。
让航天员在太空吃上热饭热菜
自“神舟八号”开始，飞船的电源在此前基础上经历了一次大的升级。供电结构由两机组升级为三机组，采用了升级版的三结砷化镓太阳电池、镉镍蓄电池和锌银电池，可满足整船大于1800瓦的负载需求。
也正是从这时候开始，电源升级后的飞船“携手”发电能力比飞船更强的天宫一号目标飞行器和天宫二号空间实验室，让航天员在太空随时吃上热饭热菜。
接棒“十七朝元老”
2020年开始，中国空间站(简称：空间站)建造大幕拉开。“神舟十二号”到“神舟十五号”的电源进一步提升了适应不同环境的能力，可以适应空间站“一字构型”“L字构型”“T字构型”多种状态下的复杂遮挡情况，与空间站展开并网供电。
“无论是径向停靠、前向停靠，还是惯性飞行、对地飞行，电源表现‘稳健’。”中国航天科技集团八院技术专家钟丹华说。
进入空间站应用与发展阶段，神舟飞船开始组批生产。“神舟十六号”和“神舟十七号”的电源相继对太阳电池翼驱动系统、驱动机构进行了升级，确保电源的“健壮”。
镉镍蓄电池已护航17次神舟飞天之路。此次“神舟十八号”的主电源中，锂离子蓄电池接棒了“十七朝元老”镉镍蓄电池，锌银电池也再次进行了“延寿”。
“锌银电池的使用寿命增加了20%，可以支撑神舟飞船在轨更长时间的停靠任务。”钟丹华说。(完)
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