氧氣筒
Oxygen tank
yangˇ qiˋ tongˇ
氧氣罩
Breathing mask, Oxygen mask
yangˇ qiˋ zhaoˋ
灌氧氣
Fill with oxygen
guanˋ yangˇ qiˋ
戴氧氣面罩
Wearing oxygen masks
daiˋ yangˇ qiˋ mianˋ zhaoˋ
雙氧水分解產生水和氧氣
Hyrdrogen peroxide decomposes to produce water and oxygen
shuang¯ yangˇ shuiˇ fen¯ jieˇ chanˇ sheng¯ shuiˇ hanˋ yangˇ qiˋ
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