词汇	延留
释义	延留 yán liú留居。延续；拖延不走。
随便看	helium-like ion helium liquefaction helium liquefaction, hydrogen liquefaction helium liquefier helium magnetometer helium main-sequence helium maser helium mass flow helium mass spectrographic method helium mass-spectrometer helium mass-spectrometer detecting system Helium mass-spectrometer leakage detector helium mass spectrometer leak detection helium mass spectrometer leak detector helium mass spectrometer leak test helium mass spectrometric leak detector helium mass spectrum helium mass spectrum leak detecting helium mass spectrum leak detection helium-mercury direct nuclear laser Helium-mess-spectroscopy leak detector helium method helium-neon helium neon fiber laser needle Helium Neon Gas Laser