Popular channels
See stats like these on every channelSee stats like these on every channel you visit
Subscribers, views, earnings, and rankingsSubscribers, views, earnings, rankings, and more. Right inside YouTube, free forever.
No change in 28d
134.11Kin 28d
$25in 14d
See stats like these on every channelSee stats like these on every channel you visit
Subscribers, views, earnings, and rankingsSubscribers, views, earnings, rankings, and more. Right inside YouTube, free forever.
47:41Since published
719
No video changes
No title or thumbnail changes have been recorded for this video.
42:53“活着就要干大事！” 听钱七虎讲述六十载铸盾人生 为共和国筑起坚不可摧的“地下钢铁长城”《开讲啦》大国拓荒者特辑 | 开讲啦 The Voice
47:10北京时间从何而来？听叶叔华讲述六十载天文征途 寄语青年未来可期《开讲啦》大国拓荒者特辑 | 开讲啦 The Voice
9:28平陆运河建成有如此之多的好处 为什么不早一些开始建？建设当中又沿用了哪些古人智慧？《开讲啦》20260919 | 开讲啦 The Voice
11:57工程师为平陆运河建起三个“水上电梯” 梯级为什么是三个？最优解是怎么算出来的？《开讲啦》20260919 | 开讲啦 The Voice
45:00平陆运河正式通航！新中国首条通江达海运河究竟意味着什么？听全国工程勘察设计大师吴澎解码大国水运新通道 《开讲啦》20260919 | 开讲啦 The Voice
