galactometer

例句：

1. 1. The doctor used a galactometer to measure the baby's milk production.
   医生使用乳糖测定器来测量婴儿的乳汁产量。
2. 2.The research team developed a new galactometer that can detect trace amounts of lactose in milk.
   研究团队开发了一种新型乳糖测定器，能够检测牛奶中微量的乳糖。
3. 3. Galactometers are commonly used in hospitals to monitor the health of pregnant women.
   乳糖测定器在医院中被广泛使用，用于监测孕妇的健康状况。