乳にゅう脂し計けいMeanings1noungalactometer; lactodensimeterA specialized instrument for measuring the fat content or density of milk. Used in dairy science and food quality control.乳にゅう脂し計けいを使つかって牛ぎゅう乳にゅうの脂し肪ぼう分ぶんを測そく定ていする。Measure the fat content of milk using a galactometer.