cassette loop projector

例句：

1. 1.This cassette loop projector is perfect for home use.
   这款磁带循环式投影仪非常适合家用。
2. 2. The teacher demonstrated how to operate the cassette loop projector.
   老师演示了如何操作磁带循环式投影仪。
3. 3. The cassette loop projector was a big hit at the school's annual science fair.
   这款磁带循环式投影仪在学校年度科学博览会上大受欢迎。