人工挑选 meaning in English
hand picking
Examples
- The raw materials are various potsherd of household porcelain . it is produced through cleaning , dedusting , crashing and sieving by special processing after manual selecting
其原料为日用陶瓷厂回收的白色餐具碎片，经人工挑选及特殊工艺进行清洗除尘，粉碎和筛分而成。