单词	precautioning
释义	precautioning [网络] 预防
随便看	helium in helium index helium injection helium ionization detector helium isotope helium isotope ratio helium lamp helium layer helium leak helium leak-check helium leak detection mass spectrometer helium leak detector helium leak-test helium leak test heliumlike helium-like ion helium liquefaction helium liquefier helium magnetometer helium maser helium mass flow helium mass spectrographic method helium mass-spectrometer detecting system helium mass spectrometer leak detector helium mass spectrometer vacuum testing by dynamic method 㯝㯟㯠㯡㯢㯣㯤㯥㯦㯪呼ビトメル呼ビナ呼ビネ呼ビミズ呼ビモドス呼ビモノ呼ビヨセル呼ビリン呼ビ交ワス呼ビ付ケル