About ISHIZUKA TAKASHI
About 清水建設 技研
About multiple dwelling house
About sound insulation
About advanced technology
About acoustical technology
About balcony
About traffic noise
About ceiling
About reflector
About noise level
About angle of incidence
About full-scale test
About microphone
About upper layer
About lower layer
About railroad noise
About sash
About Sound-proofing,sound-insulation of buildings
About Road traffic noise and vibration
About 集合住宅
About 遮音対策
About 遮音
About バルコニー
About 交通騒音
About 低減効果