3.Objective To analyse the endocrine etiology of breast fibroadenoma in juvenility,and investigate the expression of estrogen receptor(ER), progestogen receptor(PR) and adrenocorticotropic normone(ACTH) in breast fibroadenoma tissue.
4.Studies on the Relationship Between the Degree of Juvenility and Cell Ultrastructure in Larix principis-rupprechti II. The annual shoots in the upper and lower crown
5.Nowdays there are several problems in ecological engineering supervision of SWC, including timelag in cognition, imperfection of system, less specification in market, juvenility of method, faultiness of technical system, lower humanware, and lower charge, etc.