The principle of adjustment of foci is introduced and a method to realize it is given.Lensmeter can realize auto adjustment of foci and measure the parameter of eyeglass.是什么意思_The principle of adjustment of foci is introduced and a method to realize it is given.Lensmeter can realize auto adjustment of foci and measure the parameter of eyeglass.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句