如果爱

就在今天，永城街有序通车啦！_我的网站

A |     经过12个小时的沥青摊铺，并连夜施划交通标线，10月21日早晨，顺城区永城街主路道路维修改造实现半幅封闭，有序通车。

B | 当日上午，施工单位抚顺中煤建设（集团）有限责任公司（以下简称“抚顺中煤”）在对永城街东西两侧的辅路进行沥青摊铺，中午左右，永城街维修改造道路施工项目基本完工，市政部门对道路中间隔离设施进行重新设置。         　　永城街道路维修改造自今年10月14日启动，北起黑大立交桥南，南至天湖大桥北引道，全长为1300米，主路宽为24米，双向6车道，辅路宽各为12米。10月20日早晨，抚顺中煤对整个路面实施了封闭，启用4台路面摊铺机并排作业实施摊铺沥青，保证整个路面无接缝。         　　在路面摊铺沥青的施工过程中，抚顺交警部门增派了近20名警力，对施工封闭区域路口进行值守。

C | 随后，交警部门又连夜施划交通标线，确保车辆顺利通行。    

    The 24th group of the low-orbit internet satellites aboard a Long March-12 carrier rocket is launched at 12:10 pm on August 16, 2026 from a commercial spacecraft launch site in the southern island province of Hainan. Photo: VCG
Two successful launches among China's recent frequent moves caught particular attention of space watchers - the 24th group of low-Earth orbit internet (LEO) satellites aboard a Long March-12 rocket was sent from a commercial spacecraft launch site in the southern island province of Hainan on Sunday, 12 days after the 23rd group of LEO satellites aboard a Long March-8A rocket was launched from the same Hainan site on August 4.
Sunday's mission marked the 663rd launch of the Long March series of carrier rockets, which on Monday sent an SEO satellite into preset orbit, per Xinhua.
Experts said the launches of two groups of LEO satellites within 12 days underlined that China is notably accelerating its pace of building its satellite internet constellation.
"The launch of LEO satellites has now entered a regular and cyclical rhythm, with batches of satellites continuously being sent into orbit at relatively stable intervals," Kang Guohua, a senior member of the Chinese Society of Astronautics and a professor of Aerospace Engineering at Nanjing University of Aeronautics and Astronautics, told the Global Times on Monday.
China launched the first group of LEO internet satellites on December 16, 2024, proceeding to the 24th batch in about 20 months. Kang said three major production and launch "assembly lines" are supporting the effort: satellite factories featuring centralized design in Beijing, coordinated supply chains and mass production; rockets with streamlined launch and testing procedures and multiple configurations; and launch sites capable of supporting routine constellation deployment.
The Long March-12, which played a key role in the latest LEO satellite launch, is China's first 4-meter-class single-core-stage carrier rocket and was specifically developed for commercial launch needs. It is about 62.6 meters long, has a liftoff mass of 430 tons and can carry more than 12 tons to low-Earth orbit. Its first stage is equipped with four 1,250-kilonewton pump-fed liquid oxygen-kerosene engines and uses a newly developed coal-based aerospace kerosene, according to Shanghai Academy of Spaceflight Technology.
The rocket adopts a "three-horizontal" launch preparation model: horizontal assembly, horizontal testing and horizontal transportation. Depending on mission requirements, it can use fairings with diameters of 4.2 or 5.2 meters and support both single-satellite and multi-satellite launches into different orbits.
"This flexibility makes the Long March-12 particularly suitable for the 'one rocket, multiple satellites' model required for constellation deployment, making it one of the main launch vehicles currently used for LEO constellation missions," Kang said.
The mission also highlighted the launch site's growing ability to support high-frequency launches. The rocket took only two and a half days from being transported to the launch area to liftoff, setting a record for the shortest time a rocket occupied the launch position at the site, Kang said.
Despite the rapid progress, experts cautioned that the 228 satellites currently in orbit remain some distance from the ultimate goal. China's satellite internet project has a long-term goal of deploying nearly 8,000 satellites and is now in an accelerated "weaving" phase.
China's advantage lies in its ability to control costs and boost production efficiency once satellite manufacturing reaches mass-production scale, another expert surnamed Liu told the Global Times.
"Whether it is the production capacity of AI centers or the factory in Hainan, which has an annual satellite manufacturing capacity of 1,000 units, satellite production itself is not the problem," Liu said. "More bottlenecks lie in the operational efficiency of launch pads and the rocket payload and recovery technology."
The real challenge lies in rocket reusability. Only by lowering launch costs and increasing launch frequency can China sustain a pace of more than one launch per week. This is also the strategic significance of accelerating the development of reusable rocket technology, including the Long March-10B and privately developed rockets, Kang further noted.
Chinese Academy of Engineering academician Deng Zhongliang previously said in an interview that satellite internet will serve as an indispensable space-time infrastructure for 6G, enabling emerging industries worth trillions of yuan, including the low-altitude economy, advanced autonomous driving and the Internet of Things (IoT).
    The 23rd group of low-orbit internet satellites aboard a Long March-8A carrier rocket is launched on August 4, 2026 from a commercial spacecraft launch site in the southern island province of Hainan. Photo: VCG
。         　　抚顺中煤现场施工负责人介绍，他们还将对新城路东段，即永城街至长城街之间的长约1800米的路段，实施沥青摊铺作业，争取在保证施工质量的前提下，用最快的时间完成新城路东段维修改造任务，减少施工期间对周边百姓生产生活的影响。                    责任编辑：李丹。

Current article:http://www.zongchaeiwengshuabaisisuofu.sbs/list_1gct5zl/thvwhy.pptx

Published on:14:16:21