experiment packet

例句：

1. 1. The scientist conducted an experiment using the experimental packet.
   科学家使用实验包进行了一项实验。
2. 2. The student prepared the experimental packet before class.
   学生在课前准备了实验包。
3. 3. The teacher explained the steps for conducting an experiment using the experimental packet.
   老师解释了如何使用实验包进行实验的步骤。