ordain
发表于 2025-4-1 04:40:57
https://doi.org/10.1007/978-3-031-44123-3The use of hydrogen as a fuel for internal combustion engine was suggested* as early as World War I, in connection with the flight of dirigibles. It did not prove feasible with the engines of the day—largely because of problems of knock and backfire, although the latter was apparently solved in principle.
incarcerate
发表于 2025-4-1 06:19:44
Priyanka Gupta,Eirini G. VelliouSuperconductors make it possible to increase the current density in current-carrying components by over two orders of magnitude and to bring the capacity of a single line up to 10,000–30,000 MW. At the same time, the sizes and the total energy losses are substantially reduced during transmission.
固执点好
发表于 2025-4-1 12:32:18
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一起
发表于 2025-4-1 15:03:07
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钝剑
发表于 2025-4-1 21:50:08
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无能力之人
发表于 2025-4-1 22:43:39
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