gravel system

 
  • 礫石層

gravel system的用法和樣例:

例句

  1. Karez water is leaking through the mountain snow water flow inside the gravel layer of diving.
    坎兒井的水源就是山上的雪水經過滲漏流礫石層里的潛水。
  2. The conclusion is that the high-pressure gunite technique applied to 30 m thick of sand and gravel layer is feasible.
    通過本次經驗為在深厚層砂卵礫石層中進行高噴灌漿施工提供借鑒。

gravel system的相關資料:

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