bottom soil

 
  • 底土

bottom soil的用法和樣例:

例句

  1. In this experiment the soil in which clams were reared was turned over periodically tosee whether the treatment benefited the growth of the clams.
    摘要本報告探討定期翻掘養殖池的底土是否能維持良好的底質(zhì),使文蛤有較佳的活存率與成長(cháng)。
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