1. release the spear to be strong to get external pressure when pressure inside the lower Jeer spear than atmospheric pressure.2. allow external air to leak into the spear to fire. This method may be achieved if the substance in the process, it does not react with air or chemicals that are in the process of a substance that is not flammable.3. in designing the Javelin release must be configured appropriately because of the pressure. The pressure will result in a number of rooms or a tray, the height of a spear and a balance of gases and liquids. Change.
การแปล กรุณารอสักครู่..
