2 sentences

1. 她的心率监视器有序列号。

   tā de xīn​lǜ jiān​shì​qì yǒu xù​liè​hào.

   Her heart rate monitor has a serial number.

   Source: AI Challenger 2017

2. 序列号包含制造热水器的日期。

   xù​liè​hào bāo​hán zhì​zào rè​shuǐ​qì de rì​qī.

   The serial number contains the date that the water heater was manufactured.

   Source: CCMatrix