beaker sampler

例句：

1. 1. The beaker sampler is used to prepare samples for testing.
   试管采样器用于准备测试样本。
2. 2. The beaker sampler is a useful tool for collecting small amounts of liquid.
   试管采样器是一种有用的工具，用于收集少量液体。
3. 3. The beaker sampler is easy to use and can be used for many different types of samples.
   试管采样器易于使用，可用于多种类型的样本。