Last night, at the opening ceremony of the military games, the torch was lit in the water! Ma Nan, engineering director of flare combustion device, revealed that the flare uses natural gas, which is relatively light. The gas is held above the water column for combustion through the medium of water. Do you have any good ideas for lighting the torch at the sports meeting?
What's the matter with the torch at the water point of the military games? The principle is natural
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