英语词汇“safe period contraception”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	safe period contraception
释义	safe period contraception 安全期避孕
随便看	space charge breakdown space charge capacitance space-charge capacitance space charge cloud space-charge cloud space charge compensation space-charge compensation space charge conductivity space charge controlled tube space charge current space-charge current space charge debunching space-charge debunching space-charge debuncing space charge defocusing space charge density space-charge density space charge detector space-charge distoring space charge distortion space-charge distribution space charged particle space charge dynamics space-charge effec spacecharge-effect