expired air造句怎麼寫
- 造句
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Under these circumstances, the free margins of the cords can, during phonation, be more easily blown apart by the pressure of expired air.
Those patients should be given a face mask to wear, preferably one that provides filtration of their expired air.
Small amounts of free mercury may be released from amalgam fillings over time and can be detected in bodily fluids and expired air .
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