This plan main point provides one kind not to have the contact, the adjustabledistance eyeglasses.
这一方案的要点是提供一种无接触、可调距离的眼镜。
2
A major invention was the adjustable strut that could precisely set the depth of the plow by altering the distance of the blade and the beam.
一个重大的发明是可调节的支柱,通过改变刀板与横梁的距离来精确地设置犁的深度。
3
The neck was detachable (making it easier to service) and adjustable, so the player could set the distance between the strings and fretboard to his or her liking.