1) Methods:The porus delayed-released material was made by salt-leaching method, whose carrier was PLGA and calcium sulfate, and its properties was evaluated.

2) Results The sigmoid sinus, internal auditory porus, jugular porus, cochlea, petrous ridge and the most posterior point of the posterior semicircular canal could be markers of surgery.

3) Anti-season cultivation of Agarieus bis- porus, the economic performance is the autumn cultivation of 2-3 times, is good item that the large city suburb farmer a- mass a fortune.

4) METHODS: Using the co culture dish, HUVEC were separated with HUASMC, which were cultured in the same porus in vitro.

5) The physicochemical property, biomechanical property, and toxicity of the chitosanencapsulated porus CPP bioceramic were analyzed.