(资料图片仅供参考)
飞机舷窗为什么是椭圆形?航空动力专家刘大响院士专门联络了C919总设计师吴光辉院士,两位航空院士接力回答小朋友问题:高空气压低,为使乘客更舒适,机舱内会增加压力,内外存在压力差。要让舷窗均匀受力,所以设计成了圆角↓
旅游 2022-01-29 14:52:54
旅游 2022-01-29 14:52:49
旅游 2022-01-29 14:52:47
旅游 2022-01-29 14:52:46
旅游 2022-01-29 14:52:44
旅游 2022-01-29 14:52:43
旅游 2022-01-29 14:52:42
旅游 2022-01-29 14:52:41
旅游 2022-01-29 14:52:40
资讯 2023-05-28 14:52:26
资讯 2023-05-28 13:19:59
资讯 2023-05-28 12:12:56
资讯 2023-05-28 11:28:46
资讯 2023-05-28 10:21:57
资讯 2023-05-28 09:33:45
资讯 2023-05-28 08:13:16
资讯 2023-05-28 07:18:17
资讯 2023-05-28 06:17:09
资讯 2023-05-28 04:43:10
资讯 2023-05-28 03:44:46
资讯 2023-05-28 01:26:36
资讯 2023-05-27 23:33:21
资讯 2023-05-27 22:27:32
资讯 2023-05-27 20:58:08
资讯 2023-05-27 20:07:27
资讯 2023-05-27 19:01:09
资讯 2023-05-27 17:54:34
资讯 2023-05-27 17:12:54
资讯 2023-05-27 16:02:07
资讯 2023-05-27 15:27:37
资讯 2023-05-27 15:21:10
资讯 2023-05-27 13:52:58
资讯 2023-05-27 13:06:54
资讯 2023-05-27 12:05:30
资讯 2023-05-27 11:10:30
资讯 2023-05-27 09:57:26
资讯 2023-05-27 09:14:12
资讯 2023-05-27 08:49:37
资讯 2023-05-27 07:19:56
资讯 2023-05-27 05:25:16
资讯 2023-05-27 05:07:38
资讯 2023-05-27 03:45:38
资讯 2023-05-27 02:55:40
资讯 2023-05-27 02:01:13
资讯 2023-05-27 01:14:25
资讯 2023-05-27 00:47:49
资讯 2023-05-26 23:25:11
资讯 2023-05-26 23:12:57
资讯 2023-05-26 22:18:22
资讯 2023-05-26 21:22:02
资讯 2023-05-26 20:29:42
资讯 2023-05-26 19:47:41
资讯 2023-05-26 19:20:07
资讯 2023-05-26 17:37:00
资讯 2023-05-26 16:47:38
资讯 2023-05-26 16:26:44
资讯 2023-05-26 16:13:21
资讯 2023-05-26 15:33:22
资讯 2023-05-26 13:59:18
资讯 2023-05-26 13:47:27
资讯 2023-05-26 13:12:09
资讯 2023-05-26 12:01:00
资讯 2023-05-26 10:56:33
资讯 2023-05-26 10:38:43
资讯 2023-05-26 09:39:49
资讯 2023-05-26 08:50:05
资讯 2023-05-26 07:58:57
资讯 2023-05-26 07:23:14
资讯 2023-05-26 06:09:57
资讯 2023-05-26 05:07:34
资讯 2023-05-26 04:16:48
资讯 2023-05-26 03:34:35
资讯 2023-05-26 02:25:53
资讯 2023-05-26 01:52:10
资讯 2023-05-26 01:00:58
资讯 2023-05-26 00:35:07
资讯 2023-05-25 23:42:54
资讯 2023-05-25 22:34:49
资讯 2023-05-25 21:46:11
资讯 2023-05-25 20:19:37
资讯 2023-05-25 19:39:41
资讯 2023-05-25 19:32:31
资讯 2023-05-25 18:55:53
资讯 2023-05-25 18:15:49
资讯 2023-05-25 17:56:23
资讯 2023-05-25 15:58:44
资讯 2023-05-25 15:28:09
资讯 2023-05-25 14:39:52
资讯 2023-05-25 13:48:43
资讯 2023-05-25 13:07:13
资讯 2023-05-25 12:28:20
资讯 2023-05-25 11:57:23
资讯 2023-05-25 10:51:46
资讯 2023-05-25 10:50:18
资讯 2023-05-25 09:22:25
资讯 2023-05-25 08:40:36
资讯 2023-05-25 07:36:50
资讯 2023-05-25 06:50:54
资讯 2023-05-25 05:52:33
资讯 2023-05-25 04:55:42
资讯 2023-05-25 03:44:37
资讯 2023-05-25 02:27:35
资讯 2023-05-25 02:25:33
资讯 2023-05-25 00:51:37
资讯 2023-05-25 00:05:18
资讯 2023-05-24 23:45:01
资讯 2023-05-24 22:52:23
资讯 2023-05-24 22:02:24
资讯 2023-05-24 20:59:31