Typewriter, as the word structure of arm now concerned, seems to be granted form, but at the time, but when the design ShaoErSi wounded brains. For a start, he was that cover is simple and practical seal the traditional concept way lived chained, he thought keys and words long distance between unfavorable printing, preferably keys on the next, a print, word by word, just can have come out like the average person as chop, both simple and can shrink machine form. But research to finally, he felt the idea cannot achieve.
Because keys on the design of print, words next word arm cannot too long structure, otherwise, like roots in the same dish, is complex and are not practical. But word arm too short, and not use it freely, therefore, makes his gen