与"second half-value layer"相近的词条

...

• second generation redia
• second generation sporocyst
• second-grade induction
• second growth
• second-guess
• second half-value layer
• second hand
• Second hand cigarette smoke
• second-hand smoker
• second harmonic AC polarography
• second heart sound
• second heart sound,aortic component
• second heart sound,pulmonic component
• second host
• second image intensifier
• second-in-command

...