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  • 沙土、壤土和黏土(各一包)

  • (加送膠樽3個)不用學生大量收集相同大小的膠樽

  • 膠量杯

  • 四層紗布5塊

  • 橡皮圈3條

     

比較不同土壤的排水能力(加送膠樽3個)

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Room 315,3/F,Manson Industrial Building, 8 A Kung Ngam Village Lane, Shau Kei Wan,Hong Kong

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Tel: 36236969
Fax:36236995
Mobile:91966063

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