7 sentences

1. 日本的人口密度很高。

   Rì​běn de rén​kǒu mì​dù hěn gāo.

   Japan has a high population density.

   Source: Tatoeba

2. 粒子密度又增加了。

   lì​zi mì​dù yòu zēng​jiā le.

   The particle density has increased again.

   Source: OpenSubtitles

3. 这个城市的平均人口密度很大。

   zhè gè chéng​shì de píng​jūn rén​kǒu mì​dù hěn dà.

   The average population density of this city is very high.

   Source: Dong Chinese Dictionary

4. 印刷品的清晰度取决于网点的密度。

   yìn​shuā​pǐn de qīng​xī​dù qǔ​jué yú wǎng​diǎn de mì​dù.

   The clarity of printed material depends on the halftone dot density.

   Source: Dong Chinese Dictionary

5. 人口分布图显示了城市的人口密度。

   rén​kǒu fēn​bù tú xiǎn​shì le chéng​shì de rén​kǒu mì​dù.

   The population distribution map shows the population density of the city.

   Source: Dong Chinese Dictionary

6. 科学家通过实验测定了这种物质的密度。

   kē​xué​jiā tōng​guò shí​yàn cè​dìng le zhè zhǒng wù​zhì de mì​dù.

   Scientists determined the density of this substance through experiments.

   Source: Dong Chinese Dictionary

7. 在这篇物理论文中，作者用柔代表流体的密度。

   zài zhè piān wù​lǐ lùn​wén zhōng, zuò​zhě yòng róu dài​biǎo liú​tǐ de mì​dù.

   In this physics paper, the author uses rho (ρ) to represent the density of the fluid.

   Source: Dong Chinese Dictionary