交点型铀成矿
the intersection type uranium-ore forming
逆流提取
countercurrent extraction
尿沉渣提取
extraction of urine sediment
农用活性物质提取
agro-activation extraction
判别信息提取
discriminant information extraction
胚胎组织提取液
Embryonic tissue extracts
喷射床提取
Extraction in spouted beds