Xīnpiàn de gōngyì yǐjīng cóng wēimǐ jí jìnbù dào nàmǐ jí.
Chip manufacturing has progressed from micrometer scale to nanometer scale.
Tips
memory
微 means 'tiny' and 米 here is 'meter' (the SI unit, not 'rice'). Together: 微米 = 'tiny meter' = micrometer. The same 米 appears in 厘米 (centimeter), 毫米 (millimeter), and 纳米 (nanometer).
