1. But most of the physical differences between originals and copies are so minor that detection of them would require a sophisticated laboratory.
    然而，在母体和克隆体之间存在的身体差异大部分都很小，小得需要在设备精良的实验室里测定。

2. Their laboratory is above ours.
    他们的实验室在我们的上面。

3. There are thirty microscopes in our chemical laboratory.
    我们的化学实验室里有三十台显微镜。

4. The doctors removed a section of the mummy and sent it to a laboratory.
    医生们从木乃伊身上取下一个切片，送去化验。

5. The laboratory process that produced Dolly, an unremarkable-looking sheep, theoretically would work for humans as well.
    这一传闻引发了每个人的想像。克隆多莉（一只相貌无奇的绵羊）的实验过程，从理论上说也同样适用于人类。

6. He held that a man of learning, if he does not wish to degrade himself, must never cease to participate in public affairs — he must not shut himself up in his study or laboratory and shun the social and political struggles of the day.
    他认为，一个有学问的人，除非他自甘落伍，应该从不停止参加公众活动——他不能把自己关在书房或实验室中，逃避现实社会和政治斗争。

7. In his basement laboratory in London, a bacteriologist, Dr. Alexander Fleming, was searching for a substance that would kill deadly bacteria.
    当时细菌学家亚历山大·佛来明博士正在地下试验室里研制一种能够杀灭致命细菌的物质。

8. In one experiment, laboratory rats were separated into three groups.
    在一个实验中，实验鼠被分成三组：