牡丹江張拉膜二
haerbin jiemogou

牡丹江張拉膜二(圖1)

  膜結(jie)構建(jian)筑(zhu)聲(sheng)(sheng)(sheng)(sheng)學設計(ji)通常集中圍繞兩(liang)方面的聲(sheng)(sheng)(sheng)(sheng)學品質進行。第一,如(ru)何屏蔽外部噪(zao)聲(sheng)(sheng)(sheng)(sheng)對建(jian)筑(zhu)內(nei)部的影響;第二(er),建(jian)筑(zhu)內(nei)部輪(lun)廓(kuo)對回(hui)聲(sheng)(sheng)(sheng)(sheng)作(zuo)用與混響時間影響。噪(zao)聲(sheng)(sheng)(sheng)(sheng)與回(hui)聲(sheng)(sheng)(sheng)(sheng)需要考慮(lv)的因素截然不同,但兩(liang)者(zhe)必(bi)須同時考慮(lv),井評價建(jian)筑(zhu)聲(sheng)(sheng)(sheng)(sheng)環境綜合品質。