The drinking water for experimental animals of the second, third and fourth classes shall measure up to the hygiene standards of urban drinking water and undergo treatment to kill bacteria.是什么意思_The drinking water for experimental animals of the second, third and fourth classes shall measure up to the hygiene standards of urban drinking water and undergo treatment to kill bacteria.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句