Group 1: Core Views - The recent upgrades in stock ratings by brokerages are primarily concentrated in sectors with significant performance growth, rising industry sentiment, or turnaround situations, particularly in AI and robotics [2][5] - The number of stocks downgraded by brokerages has reached a year-to-date high, with notable downgrades in the coal and tourism sectors [5][6] Group 2: Upgraded Stocks - Multiple stocks in the AI and robotics sectors have received rating upgrades, including: - Platinum New Materials, with a projected net profit of 376 million yuan for 2024, a year-on-year increase of 46.9% [2] - Huichang Communications, expected to achieve a net profit of 29 million yuan in 2024, turning profitable with a 12.28% year-on-year revenue growth in Q1 [2] - Beijing Junzheng, with Q1 revenue of 1.06 billion yuan, a 5.3% year-on-year increase, and anticipated market recovery [3] - Keli Sensor, reporting a net profit of 76 million yuan in Q1, a nearly 76% year-on-year increase [3] - Nanshan Zhishang, recognized for its leading position in domestic wool spinning and new materials applications [3][4] Group 3: Downgraded Stocks - Several coal stocks have been downgraded, including: - Shanxi Coking Coal and Pingmei Shenma, downgraded to "overweight" due to weak coking coal prices [5] - Shanmei International, also downgraded to "overweight" despite low mining costs and potential production increases [5] - The tourism sector has seen downgrades, such as: - Jinjiang Hotels, with a Q1 net profit of 36 million yuan, down 81% year-on-year [5] - Miao Exhibition, downgraded due to declining revenue amid intensified competition [6] Group 4: Market Outlook - Brokerages are optimistic about AI and high-dividend sectors for May, with expectations of a continued oscillating market [7] - Recommendations include focusing on three main directions: financial dividends, self-sufficiency in industries like military, and domestic consumption [7] - The market is expected to follow a gentle recovery path, with attention on cyclical sectors and growth styles, particularly in AI and robotics [7]

在这个五四青年节到来之际，青年劳动者们奋斗在忙碌的生产一线。他们在千帆竞发的经济建设中奋楫 争先，为推进中国式现代化贡献青春力量。 焊枪淬炼青春之花 5月1日，海油工程珠海基地一片繁忙景象，"95后"全国劳动模范王佳鑫与团队成员紧锣密鼓地推进法兰 管段焊接。 时间回到2015年盛夏，一辆大巴车将王佳鑫和同学从学校拉到了珠海基地。他被分到了总装车间，车间 气温经常维持在40摄氏度以上。 为确保焊接符合工程标准，有的钢材需要预热到110摄氏度才能施焊。焊工"全副武装"连续作业几个小 时，汗水一遍遍浸透工装又被烤干。"我敢打赌，他们坚持不了一个月！"几名老焊工私下议论道。 王佳鑫偏不信，他白天利用作业空隙，向老师傅请教平台结构焊接和建造工艺。晚上一个人躲在车间角 落里，有针对性进行焊接练习。 2020年，亚洲首个300米级导管架"海基一号"在珠海基地开工建设。面对一段多次返修却无法定位裂纹 的棘手焊缝，王佳鑫和同事从15毫米一路刨到45毫米，眼看就要刨穿母材了，一名老师傅喊道："快停 下来！再有5毫米就刨漏了，材料就废了。" 王佳鑫仔细观察已经气刨过的焊缝，突然一道细小的裂纹一闪而过，他加快了手上的速度。在还差3毫 ...

业绩简评 4 月29 日晚间公司发布2024 年年报及2025 年一季报，2024 全年实现营收844.9 亿元，同比+8.1%（调整 后）；实现归母净利325.0亿元，同比+19.3%（调整后）。1Q25 实现营收170.2 亿元，同比+8.7%（调 整后）；实现归母净利51.8 亿元，同比+30.6%（调整后）。 2024 年计划现金分红约0.94 元/股，同比+0.12 元/股，现金分红比例达约71.0%，当前股价对应股息率约 3.2%。 受益于来水改善，24 年公司水电量价齐升、盈利能力提升。1）量： 24 年，乌东德/三峡水库来水分别同比偏丰9.2%/9.1%。受益于来水情况改善，24 全年公司境内水电完 成发电量2959 亿度、同比+7.1%。面对24 年汛末来水丰枯急转，公司科学发挥流域梯级电站联合调度 优势，梯级电站同比增发196.4 亿度、节水增发128.7 亿度；另通过"金下优先蓄，三峡适度蓄"的调度策 略，增利减损电量超20 亿度。2）价：受益于市场化电价上浮，公司24 年上网电价同比+1.5%，达285.5 元/MWh。3）利：水电以折旧费为主的成本结构使其盈利能力与发电量正相关，24 ...

此时此刻，在万丈天际上，一度度光明电，攀高原，走平川，点亮千家万户。位于大渡河上游的双江口水电站，也是国家"十四五"重点能源项目，电站装机 容量200万千瓦，多年平均发电量77亿千瓦时。 这里有一座正在建设中的世界第一高坝，它就是双江口水电大坝。大坝设计坝高315米，总填筑量超4600万方，大坝填筑料垒成长宽高各一米的土墙，连起 来能绕地球赤道一圈，是妥妥的超级工程。 0:00 双江口水电站库区 "耕耘者，皆光芒如炬"，这个假期，在全国各地的工程建设现场，紧锣密鼓、争分夺秒，留下了一个个潜心工作的身影。 他们为大国工程坚守奋战，描绘着幸福生活的图景，更见证着国家综合国力、经济实力和创新能力的不断提升。 如果把这个大坝比作一个夹心饼干的话，中间有一条黄色泥土部分，它就是大坝的夹心墙，和大坝外层巨大石块不同，这夹心墙是由黏土和砾石以一定比例 掺和碾压而成，是大坝防水防渗体系的"心脏"。如果说大坝外侧的坝体功能主要是提供支撑的话，那这个夹心墙则是真正起到防水防渗的作用。 完成首次蓄水 今天（5月1日），双江口水电站库区完成首次蓄水，标志着电站向投产迈出重要一步。我们一起来看看世界最高坝的霸气。 总台央视记者 古峻岭 ...

Group 1 - The "Five One" holiday saw many construction workers dedicated to accelerating major project developments [1] - The Zhejiang Tiantai Pumped Storage Power Station's Unit 1 completed rotor hoisting on May 2, marking the start of the assembly phase, with the first unit expected to be operational by the end of the year [3][5] - The Tiantai Power Station features the largest single-unit capacity in the country at 425 MW, capable of generating 1.7 million kWh per hour when all four units are operating at full capacity, sufficient to meet the instantaneous electricity demand of a medium-sized city [5] Group 2 - The Tiantai Pumped Storage Power Station set a world record with a rated head of 724 meters, indicating a significant vertical drop between the upper and lower reservoirs [7] - The project utilized domestically developed 1000 MPa high-strength steel for its pipelines, marking a first in the country and surpassing the previous record set by the Baihetan Hydropower Station [7] Group 3 - In the first four months of the year, the China-Europe Railway Express (Zhengzhou) operated 538 trains and sent 54,494 TEUs, representing year-on-year increases of 60.1% and 54.0%, respectively [8] - To meet the rising freight demand, the construction of the Zhengzhou Railway Express gathering center is accelerating, with over 1,500 workers on-site during the "Five One" holiday to ensure the first phase is completed by the end of June [8][10] - The ongoing first phase of the gathering center will have a storage area of 380,000 square meters, an increase of 112% compared to the previous storage capacity [12]

央视网消息：耕耘者，皆光芒如炬。这个假期，在全国各地的工程建设现场，紧锣密鼓、争分夺秒，留下了一个个潜心工作的身影。他们 为大国工程坚守奋战，描绘着幸福生活的图景，更见证着国家综合国力、经济实力和创新能力的不断提升。 此时此刻，在万丈天际上，一度度光明电，攀高原，走平川，点亮千家万户。位于大渡河上游的双江口水电站也是国家"十四五"重点能源 项目，电站装机容量200万千瓦，多年平均发电量77亿千瓦时。这里有一座正在建设中的世界第一高坝，它就是双江口水电大坝。大坝设计坝 高315米，总填筑量超4600万方，大坝填筑料垒成长宽高各一米的土墙，连起来能绕地球赤道一圈，是妥妥的超级工程。 双江口水电站库区完成首次蓄水 5月1日，双江口水电站库区完成首次蓄水，标志着电站向投产迈出重要一步。 双江口，顾名思义是有两条支流汇合而成。往水电站的上游也就是西边来看：左边这条叫绰斯甲河、右边这条是脚木足河。这两条河流的 水量充沛，汇合在一起之后，将为双江口水电站提供充沛的水源，能够源源不断的发出清洁的绿电。 下面通过一个短片，来回顾一下世界第一高坝水电站建设历程。 首次完成蓄水对一个水电站来说意义重大，这也就意味着它很快就可以利用 ...

月度策略/A 股市场 2025 年 4 月 30 日 继续企稳修复 2025 年 5 月份投资策略报告 分析师：费小平 SAC 执业证书编号： S0340518010002 电话：0769-22111089 邮箱：fxp@dgzq.com.cn 分析师：尹炜祺 SAC 执业证书编号： S0340522120001 电话：0769-22118627 邮箱： yinweiqi@dgzq.com.cn 分析师：曾浩 SAC 执业证书编号： S0340523110001 电话：0769-22119276 邮箱： zenghao@dgzq.com.cn | 市场主要指数 | 4 | 月份表现 | | --- | --- | --- | | | 收盘点位 | 涨跌幅 | | 上证指数 | 3279.03 | -1.70% | | 深证成指 | 9899.82 | -5.75% | | 沪深 300 | 3770.57 | -3.00% | | 创业板指 | 1948.03 | -7.40% | | 北证 50 | 1331.13 | 4.72% | | 科创 50 | 1012.42 | -1.01% | 资料来源：东莞 ...

2025.04. 30 本文字数：3614，阅读时长大约6分钟 作者 | 第一财经 林春挺 广西境内群山连绵，驱车行驶在蜿蜒于深山老林的高速路上，透过车窗望去，有时会看到一座座小水 电站在苍翠的林海中若隐若现。走进电站，你会听到水力带动机组发电的轰鸣声。但自去年秋季以 来，持续的少雨干旱天气，让这些依赖水力发电的电站长时间停摆，陷入沉寂。 位于广西贺州市八步区的上坪电站便是其中之一。四月末，几场"贵如酥" 的春雨终于降临，这座因 干旱而发电时断时续的电站，机组终于重新轰鸣运转，打破了长久以来的安静。 广西气象部门数据显示，自去年11月以来，全区平均降雨量仅110毫米，较常年同期偏少三至七成， 创下1961年有记录以来的同期最低值。截至4月21日，广西12市的55个县份出现干旱灾害。 上坪电站正是这场干旱的直接受害者。4月28日上午，在上坪电站值守的老覃告诉第一财经记者，他 已在此坚守多年，但从未见过如此长时间的干旱。自去年秋季开始，电站频繁停机。今年1至4月， 电站发电量仅为去年同期的十分之一，微薄的收入甚至难以覆盖工人工资。 在贺州市八步区，像上坪电站这样的小水电站就有数十座之众。电站所有制形式，有国有的， ...

广西气象部门数据显示，自去年11月以来，全区平均降雨量仅110毫米，较常年同期偏少三至七成，创下1961年有记录以来的同期最低值。截至4月21日，广 西12市的55个县份出现干旱灾害。 上坪电站正是这场干旱的直接受害者。4月28日上午，在上坪电站值守的老覃告诉第一财经记者，他已在此坚守多年，但从未见过如此长时间的干旱。自去 年秋季开始，电站频繁停机。今年1至4月，电站发电量仅为去年同期的十分之一，微薄的收入甚至难以覆盖工人工资。 多座小水电站相关负责人表示，电站今年的收入，要看4月之后的降雨情况。 广西境内群山连绵，驱车行驶在蜿蜒于深山老林的高速路上，透过车窗望去，有时会看到一座座小水电站在苍翠的林海中若隐若现。走进电站，你会听到水 力带动机组发电的轰鸣声。但自去年秋季以来，持续的少雨干旱天气，让这些依赖水力发电的电站长时间停摆，陷入沉寂。 位于广西贺州市八步区的上坪电站便是其中之一。四月末，几场"贵如酥" 的春雨终于降临，这座因干旱而发电时断时续的电站，机组终于重新轰鸣运转， 打破了长久以来的安静。 在过去的几个月里，上坪电站一直在亏本中运营着。付先生给记者算了一笔账：电站目前有14名员工，每月光是工资支出 ...

Core Viewpoint - The photography exhibition titled "The Construction of the World's Largest Clean Energy Corridor Begins in Yichang - Chinese Dam Builders" aims to celebrate the spirit of labor and craftsmanship, showcasing the achievements of China's hydropower construction industry and honoring the builders behind these monumental projects [1][3][7]. Group 1: Exhibition Overview - The exhibition is organized by the Hubei Provincial Photographers Association, Yichang Workers' Cultural Palace, and Yichang Photographers Association, with support from various local organizations [3]. - It features over 120 precious images that depict the struggles and achievements of the builders involved in China's water conservancy and hydropower projects [3][5]. Group 2: Exhibition Content - The exhibition is divided into two main sections: 1. "The Construction Journey of the World's Largest Clean Energy Corridor," showcasing 19 images that document the construction of the Gezhouba and Three Gorges Dams, as well as the six hydropower stations along the corridor [5]. 2. "Chinese Dam Builders - Image Archives of the Baihetan Hydropower Station Builders," featuring 101 images that capture various aspects of the builders' lives and work, highlighting their resilience, dedication, and emotional connections [5]. - The exhibition aims to transform cold engineering data into human stories, presenting a comprehensive view of the working environment, living conditions, and spirit of the Chinese dam builders [5]. Group 3: Significance of Yichang - Yichang is recognized as the starting point of the world's largest clean energy corridor, witnessing the monumental progress from the Gezhouba Dam to the Baihetan Hydropower Station [7]. - The six hydropower stations along the Yangtze River have a total installed capacity of 71.695 million kilowatts, symbolizing a significant achievement in clean energy development [7].