refractometer是什么意思

用法例句

On the basis of the refraction principle of soluble solid, the content of the soluble saltless solid in soy sauce was determined by refractometry.

基于可溶性固形物的折射原理,用折光计法测定酱油中可溶性无盐固形物的含量,取得了与重量法基本一致的结果。