【正】Objective To investigate the effect of a modified technique for reparing secondary unilateral cleft nasal deformity. Methods Nasal alar cartilage was expl
Polyethylene/aluminum/polyethylene(PAP)composite pipe has the advantages of corrosion resistance,limited joints and convenient installation.We started to use th
The phosphorus recovery from incinerated ash of sewage sludge by a heat treatment method was investigated.The incinerated ash of sewage sludge was mixed with so