Many people in industry and the Services, who have practical experience of noise, regard any investigation of this question as a waste of time; they are not prepared even to admit the possibility that noise affects people.

很多在工厂和军队工作的人，他们有实际经验，认为研究噪音是不值得浪费时间的。他们甚至不相信噪音会让人感到不舒服。