At present, the most important and most widely used of the eyepiece, there are two, both Huygens eyepiece and eyepiece.是什么意思_At present, the most important and most widely used of the eyepiece, there are two, both Huygens eyepiece and eyepiece.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句