Suetion devices are inadequate in gravels or very porous soils.吸水装置对砂砾或非常疏松的土壤是不适用的.They may form concentrated pockets in gravels.它们可能在砾石堆积物中形成富集的矿囊.Graves are a mix of gravels, clay and sand carried out by the river.它混合...
Identification and anti - tumor activity determination about anti - tumor components of Gleditsia sinensis Lam.与皂角刺抗肿瘤活性成分的分离鉴定与活性测定>>相似的文献.Immunohistochemically, the tumor cells were positive for EMA , PCK, NSE, Syn and...