To test his theory, he went into the laboratory with a few auklet feathers.An analysis showed him the chemicals that make up the auklet's "odorant.
然而,直到几年后道格拉斯在白令海的圣劳伦斯岛上研小海雀时,他才开始注意到这种有着柑橘般气味的物质对蚊子的功效。
To test his theory, he went into the laboratory with a few auklet feathers.An analysis showed him the chemicals that make up the auklet's "odorant.
然而,直到几年后道格拉斯在白令海的圣劳伦斯岛上研小海雀时,他才开始注意到这种有着柑橘般气味的物质对蚊子的功效。
To test his theory, he went into the laboratory with a few auklet feathers.
而后,道格拉斯又使用在佛罗里达一个实验室中特别培养的蚊子,进行了驱蚊的测试。
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