Method for calculating airship helium valve flow coefficient and measuring airship helium valve flow coefficient on ground
The invention belongs to the field of floating aircrafts, and particularly relates to a method for calculating a flow coefficient of an airship helium valve and measuring the flow coefficient on the ground. The calculation method comprises the steps that the actual helium discharging amount of the h...
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Format: | Patent |
Sprache: | chi ; eng |
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