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In our daily life, people need to use gas can for several purposes. However, people can not sure there are any gas left before throw out the gas can. During the rubbish disposal service, it will cause gas can explosion incident . To prevent from this incident, we create a new device that function theory base on the difference pressure in the gas can. We add ring inside the gas can. It will rise or down due to the gas pressure. People can easily to figure out the residual gas then it will be safer to recycle this rubbish.
Ming Chi University of Technology
CHIN WEN WU
HUNG CHIEN YU GAO JIAN JHIH