单词	Eve's constant
释义	Eve's constant noun ˈēvz- : a measure of the intensity of radioactivity of a given substance consisting of the number of ions produced per second per cubic centimeter of ordinary air at a distance of one centimeter from one gram of the substance when in radioactive equilibrium Word History Etymology after Arthur S. Eve †1948 British physicist
随便看	cydnid Cydnidae cydonia cydoniae Cydonian cydonias cydonium cyeses cygneous cygnet cygnets cygni Cygnus cygnuses cygnusses cyke cyl Cylas cylices cylicostome cylinder cylinder block cylinder front cylinder glass cylinder head

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