Sievert(村中周豬將它翻譯成"媳婦",看來媳婦未必好)The sievert (symbol: Sv) is the SI derived unit of dose equivalent. It attempts to quantitatively evaluate the biological effects of radiation as opposed to the physical aspects, which are characterised by the absorbed dose, measured in gray. It i [ ...閱讀全文 ] [ Junkkiller的博文列表 ]
These are the top 17 bumper stickers that everyone wants to see. Jesus loves you .. but everyone else thinks you are an ass Impotence ... Nature's way of saying "No hard feelings." The proctologist called ... they found your head [ ...閱讀全文 ] [ 深秋的雲的博文列表 ]