minimum oxygen requirement造句

With a very efficient circle system, the fresh gas flow may be reduced to the patient's minimum oxygen requirements ( e . g . 250ml / min ), plus a little volatile.
In 2001, in order for gas prices to remain reasonable in California while removing MTBE, Davis asked President George W . Bush to order the EPA to grant California a waiver on the federal minimum oxygen requirement.
It's difficult to find minimum oxygen requirement in a sentence. 用minimum oxygen requirement造句挺难的