为了解载人航天飞行中失重对人体各器官造成的影响,许多试验要在地面模拟失重条件下进行。目前国内外模拟失重的动物大多采用猴、狗、鼠等,由于豚鼠的耳壳比例较大,是听觉器官研究中最常 In order to understand the impact of weightlessness on various human organs in manned space flight, many experiments have to be carried out on the ground to simulate weightlessness. At present, most animals simulating weightlessness at home and abroad adopt monkeys, dogs and mice. Since guinea pigs have a large proportion of the ears and ears, they are the most common in auditory organ studies