某市松褐天牛危害调查及防治效果分析_动植物检疫_毕业设计论文网 关键词: 松褐天牛;松树;分布与危害;防治措施 [gap=533]Key words: Monochamus alternatus; Pine; Distribution and harm; Control measures
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Alcohol is indeed the drug that does society the most harm, according to the researchers, but this may be a factor related to its wide distribution and popularity.
按研究者们所说,酒精的确是对社会最有危害的毒品,因为酒精分布范围很广阔,也很普及。
Copyright provides protection for distribution companies and for a few celebrities, thereby helping to support the industry as currently defined, but it may actually harm the majority of performers.
版权为发行公司和少数名人提供保护,从而有助于扶持当今意义下的这一行业,事实上却可能损坏了大多数音乐人的利益。
The research status of Opogona sacchari were analyzed in the regards of biology, ecology, distribution range, harm symptoms, and its integrated control measures were also discussed.
从生物学、生态学、分布范围及危害症状等方面分析了蔗扁蛾目前的研究现状,并对其综合防治措施进行阐述。
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