3 sentences

1. 我们需要对实验数据进行定量分析。

   wǒ​men xū​yào duì shí​yàn shù​jù jìn​xíng dìng​liàng fēn​xī.

   We need to conduct a quantitative analysis of the experimental data.

   Source: Dong Chinese Dictionary

2. 容量分析是实验室中常用的定量分析方法。

   róng​liàng fēn​xī shì shí​yàn​shì zhōng cháng​yòng de dìng​liàng fēn​xī fāng​fǎ.

   Volumetric analysis is a commonly used quantitative analysis method in laboratories.

   Source: Dong Chinese Dictionary

3. 每名士兵每天都有定量的口粮。

   měi míng shì​bīng měi tiān dōu yǒu dìng​liàng de kǒu​liáng.

   Each soldier has a fixed daily ration.

   Source: Dong Chinese Dictionary