secondary aperture 中文意思是什麼

secondary aperture 解釋
次生口孔
  • secondary : adj 1 第二（位）的，第二次的；中級的 （opp primary）。2 副（的）；從屬的；附屬的；輔助的；補充的...
  • aperture : n. 1. 孔，隙縫。2. （照相機的）光圈；孔徑，口徑。
  1. Compared with the studies on macrofauna in bohai sea and southern yellow sea, the macrobenthic abundance and biomass in jiaozhou bay were less than those of two seas. but the macrobenthic secondary production in jiaozhou bay was more than that of the bohai sea. using the sieves with 0. 5mm aperture mesh in sorting quantitative macrobenthic samples shows more advantages than that of using sieves with 1mm aperture mesh

    本研究同時使用了1mm和0 . 5mm孔徑的網篩進行大型底棲動物的分選，通過兩種孔徑網篩篩留大型底棲動物的種數、豐度和生物量比較，說明0 . 5mm孔徑的網篩對大型底棲動物分選在種類和數量組成優於1mm孔徑網篩，使群落結構更完整，樣品代表性更高。
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