hexad

基本解釋

It's very difficult! but I think it should be "hexad", and "hex" left when we take away the last two letters.
一個什么樣的五個字母的詞，當你拿掉兩個字母后還有六個剩下？
The results indicated that the protoxylem of Cajanmus cajan in the main root was mostly tetrarched, less pentarched and hexad.
結果表明：木豆主根的初生木質部多為4原型，少數(shù)3原型；
The results indicated that the protoxylem of Cajanmus cajan in the main root was mostly tetrarched,less pentarched and hexad.
結果表明:木豆主根的初生木質部多為4原型,少數(shù)3原型;
HEXAD PNEUMATIC BULLET HEADS SHAPING MACHINE
六模子彈頭定型機
A Pneumatic Walking-robot with Hexad Legs and Its PLC Control
采用氣壓驅動的六足行走機器人及PLC控制