蠹蛀
- 与 蠹蛀 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The seabuckthorn carpenter moth, Holcocerus hippophaecolus Hua, Chou, Fang et Chen is recently a major pest of seabuckthorn in Inner Mongolia Autonomous region, Liaoning, Shanxi, Ningxia and Shaanxi provinces in China. The generation time of H. hippophaecolus is four years. The larvae cause damage primarily to the stems and roots of seabuckthorn, and the mature larvae pupate in soil.
沙棘木蠹蛾(Holcocerus hippophaecolus Hua, Chou , Fang et Chen)是近几年在内蒙古、辽宁、山西、宁夏和陕西等地大面积爆发的一种钻蛀性害虫,该虫约4a完成1代,主要以幼虫危害沙棘的根部和干部,老熟幼虫在土壤中化蛹。
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Identification, synthesis,and biology of the sex pheromone for Holcocerusinsularis Staudinger(Lepidoptera:Cossidae)were studied by means of gaschromatography,gas chromatography-mass spectrometry,electroantennogram,microchemical analysis,electron microscope,transmission electron microscope,and field tests in this dissertation.
本学位论文以危害白蜡、国槐等园林树木的重要蛀干害虫小线角木蠹蛾Holcocerus insularis Staudinger为对象,利用气相色谱、气相色谱-质谱联用、微量化学反应、触角电位、电镜技术和田间试验等技术与方法,完成了小线角木蠹蛾性信息素的鉴定、合成与生物学研究。
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The studies on the dionomics of Dendroctonus valens show that this pest overwinters mainly as adult or 3~4 larva in roots of pine at Hancheng region in Shaanxi Province. It occurres 2 generations one year by adult overwintering and 1generation one year by larva overwintering.
红脂大小蠹原产北美洲 [1~3], 1996年随木材贸易传入我国, 2001年发现于陕西省黄龙桥山林区,现已在延安和渭南地区发生危害,涉及 4个县的 18个林场,主要危害 20a生以上油松活立木的基部和根部,以成虫和幼虫蛀食树体韧皮部,短期内可导致被害木枯萎死亡。
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Scolytidae is one of the most important insect populations of the forestry and spreaded abroad by international trade .
小蠹是最重要的森林蛀干害虫之一,由于危害极其隐蔽,被认为是通过国际贸易传播最为普遍的一类昆虫。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。