leachn.垂直帆缘;后缘=leech.v.过滤;萃取;溶解出
leaching rule溶出规律
leaching text淋滤实验
leaching test淋溶试验
Leaching slag浸出渣
leaching idea教学思想
leaching norm冲洗定额
leaching of P磷渗漏
leach residue浸取残渣
Leach in acid酸浸
leaching well渗井,渗坑