| http://www.w3.org/ns/prov#value | - Also, by using pressure adjusting means 213, such as a pump, for example, a high pressure gas is introduced into the pressure adjusting vessel to ensure that the inside pressure of the pressure adjusting vessel becomes higher than the outside atmospheric pressure.As an alternative example, the inside of the pressure adjusting vessel 205 may be filled with a liquid, which is transparent with respec
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