These people tend to have minds that are much nimbler than their hands. The lack of adequate equipment for practical testing and training is often part of the problem.
而他們往往太執著書上的理論，眼高手低，不願意花時間實際去接觸機器；有時則是學校沒有足夠的機器可供實習、操作，以致停留在「紙上談兵」的階段。