单词	封闭器
释义	封闭器1. an obturator; a sealer
随便看	current， noise current， opposed current， orbital current， outgoing current， photoelectric current， pinch current， plasma current， polarization current， positive-ion current， probability current， random current， residual current，reverse leakage current， ring current， saturation current， saturation ion current， sheet current， signal current， space current， space-charge current， space-charge-limited current， specific current， target current， thermionic currer c