单词	ring wave
释义	ring wave 振铃波
随便看	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 helium mass spectrometric leak detector helium mass spectrum leak detection 咶咷咸咹咺咻咽咾咿哀管片管片儿管牙管状花管理管生植物管用管界管穴管穿