| 摘要 |
A gas administration apparatus, e.g., anesthesia machine, making use of three or more gas flow, e.g., vaporizer, units removably mounted thereon by an interlock exclusion system. The interlock/exclusion systems is operative to prevent opening of any gas flow unit if one gas flow unit is already open and irrespective of how many gas flow units are mounted on the apparatus at the time.
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