surface roughness measuring gauge

例句：

1. 1. This surface roughness measuring gauge is very accurate.
   这个表面粗糙度测量仪非常准确。
2. 2. The engineer used the surface roughness measuring gauge to check the quality of the metal.
   工程师使用表面粗糙度测量仪检查金属的质量。
3. 3. The manufacturer claims that their surface roughness measuring gauge is the best in the market.
   制造商声称他们的表面粗糙度测量仪是市场上最好的。