microwave refractometer

例句：

1. 1.This microwave refractometer can quickly measure the refractive index of materials.
   这个微波折射计可以快速测量材料的折射指数。
2. 2. The manufacturer claims that their microwave refractometer is more accurate than other brands.
   制造商声称他们的微波折射计比其他品牌更准确。
3. 3. The engineer used the microwave refractometer to test the quality of the new material.
   工程师使用微波折射计测试新材料的质量。