单词	air-break switch
释义	air-break switch noun : an electrical switch that breaks the circuit in air compare oil-break switch Word History First Known Use 1901, in the meaning defined above
随便看	Sumatra leaf Sumatra seed Sumatra wax sumatrae sumatran sumatrans sumatras sumatriptan Sumba Sumbawa Sumbawanese Sumdum sumdums sumen Sumer sumer sumeres Sumerian sumerians Sumeric Sumero- Sumero-Akkadian Sumero-Babylonian sumerologies sumerologist

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