正是这些细胞把声音的机械能转化成送往大脑的电冲动，这样鸡，鼠或人才能听到声音。
It's these cells that convert the mechanical energy of sound into electrical impulses that are sent to the brain so that a chicken, a mouse or a human can hear.
本文对河北省北部的塞罕坝机械林场和御道口牧场的森林鼠害防治技术进行了初步研究，包括杀鼠烟剂的筛选和中药提取物的筛选。
In this paper, the preliminary study on prevention and control technique of forest rat harm in Saihanba Mechanised Tree farm and Yudaokou Ranch of northern of Hebei was made.
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