清洁动物（clean animals）：亦称二级动物，除普通动物应排除的病原外，不携带对动物危害大和对科学研究干扰大的病原。
基于58个网页-相关网页
根据控制的程度不同，目前我国将实验动物分为普通级动物(Conventional animals,CV)、清洁级动物(Clean animals, CL)、无特定病原体动物(Specefic pathogen free animals,SPF)和无菌动物(Germ free animals, GF),其中包括悉生动物(Gnotobiotes...
基于7个网页-相关网页
clean laboratory animals 清洁级实验动物
Cats are very clean animals.
猫是颇爱干净的动物。
《牛津词典》
Pairs of clean and unclean animals, of birds and of all creatures that move along the ground.
洁净的畜类和不洁净的畜类，飞鸟并地上一切的昆虫。
youdao
Pigs are very clean animals and choose to defecate in an area separate to their feeding area.
猪是非常干净的动物，它们会分的很明确吃食的地方和其它的地方。
When people were talking about liking badgers they would talk about them being clean domestic animals, very houseproud and family-oriented.
BBC: Badgers: Splitting public opinion for more than 200 years
Staff used washing up liquid and margarine to clean the animals.
BBC: 'Sticky substance' birds rescued in Devon and Cornwall
Youngsters aren't allowed to ride until they first learn how to groom the animals, clean their hooves, saddle and bridle them and, yes, muck their stalls.
CNN: STORY HIGHLIGHTS
应用推荐
模块上移
模块下移
不移动