【化】 hydrogen tetrasulfide
four
【医】 quadri-; Quat; quattuor; tetra-
vulcanization
【化】 cure; sulfofication; sulfurization; sulphidizing; vulcanization
xanthation
【医】 sulfurize
twin; two
【计】 binary-coded decimal; binary-coded decimal character code
binary-to-decimal conversion; binary-to-hexadecimal conversion
【医】 bi-; bis-; di-; duo-
hydrogen
【医】 H; hydr-; hydro-; hydrogen; light hydrogen