- 人口密度 rénkǒumìdù population density
- 密度计 mìdùjì densitometerdensity gauge
- 密度波 mìdùbō density wave
- 经纬密度 jīngwěimìdù thread count(textiles) thread count
- 相对密度 xiāngduìmìdù relative density
- 精子密度 jīngzǐmìdù sperm concentrationSperm concentration, often referred to as sperm count.
- 中密度纤维板 zhōngmìdùxiānwéibǎn MDFmedium-density fiberboard
