The research team carried out tests on 24 rats with pre-cancerous tumours in laboratory conditions.

研究人员用24只小鼠进行了试验。

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It can be bred and grow very well in laboratory conditions when temperature and humidity are suitable.

在温、湿度适宜的条件下，通过人工室内饲养，可以生长良好。

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The running speed (on a running machine in laboratory conditions or on the track) accelerates progressively, by successive levels.

跑步速度需要连续地增加（在实验室的跑步机或在跑道上）。

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To define and measure boredom, Dr. Eastwood and other researchers simulate extremely dull conditions in the laboratory for participants, typically college students.

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This is largely because cars are never actually tested out on the road, but rather in a laboratory under strictly controlled conditions that are designed to simulate city and highway.

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The Japanese will have a full year to test and fine-tune products in real market conditions while the European prototypes remain in the laboratory.

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