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C919 completes first scheduled international commercial service_我的网站

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    Air China flight CA723 takes off from the Beijing Capital International Airport in Beijing, on August 12, 2026. China launched the first international route featuring its homegrown C919 aircraft, connecting Beijing with Ulaanbaatar, capital of Mongolia. Photo: VCGAt around 4:58 pm on Wednesday, Air China flight CA723, a China-designed and manufactured C919 aircraft carrying 121 passengers, landed in Mongolian capital Ulaanbaatar, marking the latest milestone in the C919's commercial operation since its maiden commercial flight on May 28, 2023. The journey, which started in Beijing, was more than another takeoff, as it marked the C919's first international commercial flight and the beginning of regular international operations for China's homegrown large passenger aircraft.
As the C919 climbs higher and flies farther beyond China's borders, the runway behind it gradually disappears. What comes into focus instead is a much broader journey - one in which China's advanced engineering capabilities are reaching new markets, new partners and new possibilities around the world.
Historic moment
Hours before takeoff, a passenger surnamed Zhang, who was completing check-in procedures at Beijing Capital International Airport, said with a smile that he had stumbled into a "historic moment" by chance.
"I didn't pay much attention when I booked the ticket. I had heard that our homegrown C919 would soon begin international service, but I never expected it would be this very flight," Zhang told the Global Times on Wednesday. "I feel incredibly proud and excited."
From its maiden flight in Shanghai in 2017, when its first takeoff had many watching with bated breath, to its first scheduled international commercial service today, the C919's journey reflects China's sustained push to build up its capabilities in advanced aviation manufacturing. 
In recent years, China's top-level policies have strongly supported the development of high-end manufacturing. As the nation enters the opening year of the 15th Five-Year Plan period (2026-30), Chinese high-end manufacturing is increasingly translating technological breakthroughs into globally competitive products and solutions to contribute more broadly to industrial development and connectivity worldwide, Chinese experts noted.
And the C919 program is one of China's most ambitious endeavors to push the frontiers of high-end manufacturing.
The C919 is China's first self-developed trunk jetliner in accordance with international airworthiness standards and registered with independent intellectual property rights, according to the Xinhua News Agency on Wednesday.
Industry experts said the C919's progress reflects the rapid advance of China's broader manufacturing capabilities. Only a handful of countries are capable of developing single-aisle mainline passenger jets, and even fewer can bring a certified aircraft into commercial service.
The C919 aircraft's biggest achievement is that China has built the capability to take a large passenger jet from the drawing board all the way to a certified commercial product, covering overall design, airframe manufacturing, system integration and airworthiness approval, Wang Ya'nan, editor-in-chief of Beijing-based Aerospace Knowledge magazine, told the Global Times on Wednesday.
Much of the aircraft's design, major structural manufacturing and key systems are completed in China. He said this marks a significant step forward in China's civil aviation manufacturing capability, placing the country among the few able to develop a modern trunk-line jet and bring it into commercial service. Its expanding operations now represent the next stage of that progress, he added.
As of Monday, the C919 aircraft had served 57 routes linking 25 cities and handled more than 7.5 million passenger trips, said the Commercial Aircraft Corporation of China (Comac), the jet developer, according to Xinhua.
However, the C919 still faces intense competition in a global market dominated by established players. Experts said, however, that its competitiveness could continue to strengthen as operational experience grows and China accelerates indigenous development of key components and systems.
The UK-based aviation industry publication Airline Economics noted on July 13 that Malaysia Airlines continues to consider Comac's C919 as a future fleet option, but Western regulatory certification remains a key requirement before the carrier would consider operating the Chinese narrowbody.
This has also brought into sharper focus the dual considerations of certification and market demand among potential international customers for the C919, as Wang said this is precisely why the C919's continued expansion into new routes and markets matters. 
As cross-border services expand, the C919 will also need to move closer to international operating standards by building a support network that goes beyond its domestic maintenance system to cover the full cycle of international operations, including regulatory coordination, overseas maintenance facilities and spare-parts logistics, Han Tao, an expert with China's civil aviation think tank, told the Global Times on Wednesday. 
Strengthening these capabilities will be crucial to supporting more international routes and meeting the standards and operational needs of potential overseas customers, Han said.
Meanwhile, industry observers noted that China is also stepping up efforts to advance key components and systems for large commercial aircraft, an area that remains a major challenge for most countries' aviation industries, with mature capabilities still largely concentrated in the US, the UK and France.
Pushing boundaries, sharing opportunities
As the C919 flies farther, it is carrying with it not only China's advances in high-end manufacturing, but a broader story of how Chinese innovation is moving from breakthroughs at home to new possibilities shared with the world.
Underpinning that shift is China's expanding advanced manufacturing capacity and increasingly complete industrial ecosystem, which are helping turn technological breakthroughs into scalable products, a Chinese expert said.
China is upgrading its traditional industrial base while cultivating new sectors that could shape future competitiveness, seeking to move beyond scale and cost advantages toward a more innovation-driven industrial model, injecting new impetus into the country's high-quality development, according to Xinhua's another report on July 21.
The nation's 15th Five-Year Plan underscores the development of a modernized industrial system with advanced manufacturing as its backbone, the report said.
China's vast and diverse market provides advanced manufacturing with something equally important as technological capability: abundant real-world scenarios for testing, refinement and commercialization, Bian Yongzu, executive deputy editor-in-chief of Modernization of Management magazine.
This helps turn breakthroughs into mature, scalable products more quickly. Over the longer term, he said, advanced manufacturing will strengthen China's competitiveness by combining stronger industrial capabilities with complete supply chains and global cooperation, allowing more Chinese technologies, products and solutions to reach international markets, Bian said.
Aviation manufacturing, as a key pillar of high-end manufacturing, is benefiting from this broader push toward industrial upgrading and technological innovation.
At the fourth China International Supply Chain Expo held in Beijing in June, a complete aviation industry innovation chain stands out, spanning aviation materials, core forgings and low-altitude economy applications, drawing widespread attention to the participating companies, Xinhua reported.
Bian said that a complex project such as the C919 can drive coordinated upgrades across advanced materials, precision equipment, core components, system integration, logistics and skilled talent. In this sense, building a large commercial aircraft is a comprehensive test of a country's industrial depth, supply-chain coordination, and ability to turn sophisticated technologies into reliable commercial products.
。    IT之家 7 月 21 日消息，科技媒体 The Decoder 昨日（7 月 20 日）发布博文，报道称谷歌 DeepMind 发布 GenCeption 模型，将预训练的视频生成器重新用于深度估计和分割等经典计算机视觉任务。         IT之家援引博文介绍，大语言模型在学习预测下一个 Token 的时候，在训练过程中往往需要吸收语法、世界知识和上下文关系等内容。         但是在计算机视觉领域，视觉模型缺少等效的训练方法，主要由专业模型主导，包括用于分割的“Segment Anything”和用于深度估计的“Depth Anything”，每个模型都使用其特定的架构。

B |          谷歌 DeepMind 团队为此提出 GenCeption 模型方案，尝试将一个“生成视频”的 AI 模型逆向改造成一个能“理解世界”的视觉分析引擎。         GenCeption 打破了传统计算机视觉“一个任务一个专用模型”的格局，仅凭单一模型就能同时做好深度估计、图像分割、3D 姿态估计、表面法线预测和相机姿态估计等核心视觉任务。         GenCeption 基于阿里巴巴开源视频模型通义万相 Wan2.1 系列训练，与传统扩散模型需多步去噪不同，GenCeption 在一次前向传播中完成预测，从而提升视觉任务处理速度。模型通过文本提示指定任务，可输出深度图、表面法线图、分割掩码，并可处理相机运动表示。         训练数据以合成为主。论文称，数据集仅包含 7500 段视频，由 800 个数字人体模型与 200 段动作捕捉序列组合生成，再通过 Blender 在不同背景和镜头角度下渲染。

C |          泛化方面，GenCeption 几乎只在单人合成视频上训练，但可处理真实多人视频，也可迁移到动物和类人机器人类别。论文称，部分输出细节甚至超过训练时 Blender 渲染结果，可保留猫胡须和单根发丝边缘。         性能方面，论文给出两组处理时间数据：小模型处理 81 帧视频约需 6 秒；大模型参数量为 140 亿，处理同样长度视频约需 10 秒。         参考。

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