The characteristics of the injection process for PMMA material are analyzed.A measure for design of the injection mould for the PMMA magnifiers is introduced.是什么意思_The characteristics of the injection process for PMMA material are analyzed.A measure for design of the injection mould for the PMMA magnifiers is introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句