镀层
dùcéng
镀层 — dùcéng
- the coating on something that has been chrome-plated, copper-plated, etc.; plated layer
这些零件表面有镀层,可以防止生锈。 zhèxiē língjiàn biǎomiàn yǒu dùcéng kěyǐ fángzhǐ shēngxiù — The surfaces of these parts have a plating layer that can prevent rust.