پاورپوینت نانومتر چیست نوع فایل: پاورپوینت قابل ویرایش 29 اسلاید ¢ There are 1 billion (1,000,000,000) nanometers in 1 meter ¢ There are 1 million (1,000,000) micrometers (or microns) in 1 meter ¢ A line of ten hydrogen atoms lined up side by side is 1 nanometer long ¢