陶桂东介绍，网传旅客实测值对照的是我国GB 50736-2012《民用建筑供暖通风与空气调节设计规 范》的民用建筑室内二氧化碳浓度限值标准，该标准不适用于旅客列车。各国旅客列车浓度标准限值均 是依据移动运载装备的内部压力波动、二氧化碳浓度等综合舒适性指标设定的。 陶桂东介绍，动车组列车为全气密车体，车内换气完全由空调通风系统实现，人均新风量超过 15m³/h（每小时立方米），每小时换气次数为6至12次，同时动车组配置有压力保护系统。在非隧道区 段运行时，可实现连续换气，二氧化碳浓度一般不超过1500ppm；当通过连续隧道群时，为降低外界空 气压力波动导致的旅客耳鸣，列车会采取压力保护动作关闭与车外空气的通道，此时无法实现车内外空 气交换，车厢内二氧化碳浓度短时间内会有所升高，不会对旅客健康产生影响。 2026年1月23日，针对网传"乘客实测高铁车厢内二氧化碳浓度超过标准限值1000ppm"的信息，记 者采访了来自中车青岛四方机车车辆股份有限公司的动车组专家陶桂东。 陶桂东介绍，轨道交通移动装备有其特殊性，我国旅客列车室内二氧化碳浓度控制标准执行TB/T 3493-2017《铁道车辆空调 空调压力保护装置》，正 ...

Group 1 - China CRRC's Datong Electric Locomotive Company increased its registered capital from 656 million RMB to 1.14 billion RMB, with some executive changes [2] - Huawei's subsidiary, Shenzhen Yiwang Intelligent Technology Co., announced a patent for a vehicle travel companion method that allows remote users to experience the driving process in real-time [2] - Kubota showcased a hydrogen fuel cell-powered autonomous tractor at the Osaka Expo, featuring a power output equivalent to a 100-horsepower diesel engine and equipped with sensors and AI cameras for remote operation [2] - The 2026 Volvo EX90 was officially unveiled, featuring a significant upgrade to an 800V architecture that enhances charging efficiency and optimizes motor power output and range [3]

Group 1 - The core point of the article is that CRRC Datong Electric Locomotive Co., Ltd. has increased its registered capital from 656 million yuan to 1.14 billion yuan, representing an increase of approximately 74% [1] - The company underwent changes in some of its senior management [1] - CRRC Datong was established in February 2003 and is wholly owned by CRRC Corporation Limited, with its business scope including the manufacturing, design, and maintenance of railway locomotives and vehicles [1]

Group 1 - The core point of the article is that CRRC Datong Electric Locomotive Co., Ltd. has increased its registered capital from 656 million to 1.14 billion yuan, representing an increase of approximately 74% [1] - The company underwent changes in some of its senior management [1] - CRRC Datong was established in February 2003 and is wholly owned by CRRC Corporation Limited [1] Group 2 - The business scope of CRRC Datong includes manufacturing, designing, and maintaining railway locomotives and vehicles [1]

Core Viewpoint - China CRRC's Datong Electric Locomotive Company has increased its registered capital from 656 million RMB to 1.14 billion RMB, representing a growth of approximately 74% [1] Company Summary - The company was established in February 2003 and is wholly owned by China CRRC [1] - The legal representative of the company is Fu Yongjun [1] - The business scope includes manufacturing, designing, and maintaining railway locomotives and vehicles [1] Capital Increase Details - The registered capital increase is significant, moving from 656 million RMB to 1.14 billion RMB [1] - This capital increase may indicate a strategic move to enhance operational capabilities or expand business activities [1]

Group 1 - The registered capital of CRRC Datong Electric Locomotive Co., Ltd. has increased from 656 million RMB to 1.14 billion RMB [1] - There have been changes in some senior management positions within the company [1] - CRRC Datong Electric Locomotive Co., Ltd. was established in February 2003 and is fully owned by CRRC Corporation Limited [1] Group 2 - The company's business scope includes manufacturing, designing, and maintaining railway locomotives and vehicles [1]