即係d土質點解有係粗粒...點解會係幼粒o既?
同埋點解會係黏土....點解會係砂粒?
點解?唔該解釋下.......thx~~~~
更新1:
有冇更詳細答案呢?
有冇更詳細答案呢?
收錄日期: 2021-04-23 21:28:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070502000051KK04623