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没有麻醉就对动物做外科手术以前很常见；
Surgery on animals without anesthesia was once common;
youdao
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目的：探索适用于大鼠动物模型的安全有效的麻醉方法。
Aim: To research a safe and effective anesthetic method for rat models.
youdao
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一次需要麻醉多少动物？
How many animals are you anesthetizing at once?
youdao
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一次需要麻醉多少动物？
How many animals are you anesthetizing at once?
youdao