binary protostar

A reduced bis-Schiff base guest containing pyridyl, N,N′-bis(4-pyridylmethyl)-1,6-hexanediamine (C6N4), has been synthesized from 4-pyridinecarboxaldehyde and 1,6-hexanediamine.

以4-吡啶甲醛和1,6-己二胺为原料,合成了含吡啶基的还原双席夫碱客体N,N′-二(4-吡啶基甲基)-1。

Nine flea species in 7 genera in 3 families were found on the vole body with Amphipsylla primaris mitis as the dominant species(41 8%),followed by Neopsylla pleskei orientalis (41 2%) and Frontopsylla luculenta (13 2%).

198 9～ 1998年对内蒙古阿巴嘎旗那仁宝力格苏木布氏田鼠Microtusbrandti体蚤和巢蚤的数量进行了调查和分析 ,所得体蚤包括 3科 7属 9种 ,其中优势种有 :原双蚤田野亚种Amphipsyllapri marismitis占 4 1 84 % ,近代新蚤东方亚种Neopsyllapleskeiorientalis占 4 1 18% ,光亮额蚤Frontopsyllaluculenta占 13 18%。

In Zhexi power station of Hunan of China, a species of caddisfly named Amphipsyche proluta MacLachlan has arised in a great quantities (over 10 tons or 1000 millions individual) every year, and becomes a serious biological disaster.

针对生活在水流速度较快的湖南省柘溪水电站一带河床大量发生的原双栖纹石蛾(Amphipsycheproluta)来说,采用一般的防治措施都很难付诸实施,或者只能是治标,不能治本。