b class division 中文意思是什麼

b class division 解釋
極防火區劃
  • b :
  • class : n 1 階級;社會等級。2 學級；班級，年級，級，班；組；（有組織的）講習班；〈美國〉同年畢業班；【軍事...
  • division : n 1 分，分開，分割；分劃，區分。2 分配；分派。3 分裂，（意見）不一致，傾軋。4 區域；〈英國〉選區...
  1. B class division

    B級分隔
  2. 16032 evaluation units of the potential land productivity were overlaid out. by using the mechamism methodology and relative computing models, yaan city ' s land productive potentiality was computed according to synthetic index of land productivity evaluation that was taken as soil effective coefficient. result of research indicated that : ( a ) siol effective coefficient changed from 0. 3047 to 0. 8550, respectively with medium - low yield farmland of 71. 28 percent. ( b ) the division of climate productivibilty is situated on the third degree and fourth class western area in east of chian

    4 、雅安市土地自然生產潛力與目前的實際生產水平比較，其增產潛力平均為23 . 53 ，說明農業技術和管理措施等的增產潛力較大；將目前土地的實際生產水平與15年前比較，土地的實際生產水平逐年上升，年均遞增0 . 64 ，顯然，土地的自然生產潛力是可以通過各種農技措施來挖掘的。
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