植物挥发性信息化合物 plant semiochemical volatiles
采用暗室生测法调查了蚜虫对处理的植物挥发性化合物的反应；
The aphid response towards oil treated plant volatiles was investigated using a darkened arena bioassay.
植物通过空气输送的是一种名为挥发性有机化合物（简称VOCs）的化学混合物。
What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, VOCs for short.
科学家发现，各类植物受到攻击时都会发出挥发性有机化合物。
Scientists have found that all kinds of plants give out VOCs when being attacked.
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