用于林木病虫害防治的便携式脉冲烟雾机，其燃烧室喷管为主要工作部件。

A portable pulse fogger is mainly used in forestry disease and insect control. The combustion chamber and its tailpipe are main parts of the fogger.

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这些重要基因的获得为利用转基因技术培育高产、优质、抗逆、抗病虫害的林木新品种奠定了一定的基础。

This information has laid a solid foundation for using transgenic technology to cultivate new varieties of forest trees for high yield, fine quality, high stress tolerance and pest resistance.

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