使用年限 shǐyòngniánxiàn service life Definitions Defs Origin Strokes Stroke Words Sentences Sents 使用年限 shǐyòngniánxiàn service life useful life of a product; tenure of use; expected lifespan of equipment or a building
使用年限 shǐyòngniánxiàn service life useful life of a product; tenure of use; expected lifespan of equipment or a building
