摘要
The 1991 international conference on noise control engineering,inter-noise 91,con-vened in Sydney,Australia 2-4 December,1991.About 450 participants came frommore than 30 countries.The largest number,135,of course,came from the hostcountry,next were 80 from Japan,40 from USA,20 each from New zealand,Sweden andFrance,etc.More than half of the represented countries sent only one or two partici-pants.the number came from China was 12.
