【医】 dicacodyl
four
【医】 quadri-; Quat; quattuor; tetra-
armour; first; nail; shell
【医】 carapace; concha; conchae; helo-; nail; onycho-; onyx
twin; two
【计】 binary-coded decimal; binary-coded decimal character code
binary-to-decimal conversion; binary-to-hexadecimal conversion
【医】 bi-; bis-; di-; duo-
【化】 arsine
【医】 arsenide hydrogen; arseniuretted hydrogen; arsine; hemolytic gas