When female cowbirds raised in isolation in sound-proof chambers were exposed to recordings of male song, they responded by exhibiting mating behavior.
当把雌性牛鹂单独养在隔音的房间里，让它们听到雄性的歌声，它们就会表现出交配行为。
In this paper, through the experimental study and theoretical analysis, sound isolation behavior of concrete hollow brick wall is studied.
本文通过试验研究和理论分析研究了混凝土(空心)砖墙体的隔声性能。
The results of experimental study demonstrated that sound isolation behavior of normal concrete hollow brick wall is good and completely reaches the level of clay solid brick wall.
试验研究结果表明：普通混凝土空心砖墙隔声性能较好，完全能达到粘土实心砖的水准。
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