English ⇄ Chinese

detecting slag with human eye
met.	目视测渣; 肉眼测渣 (However, the poor visual conditions around the tap stream, and the difficulty in detecting the presence of slag in the stream makes the task of detecting slag with the human eye a difficult one. 然而，由于出钢钢流周围可视条件差、钢流测渣难度大，从而使得目视测渣成为一项困难的任务。)