clay core

短语词组

短语

• clay central core 粘土心墙
• clay impervious core 粘土防渗墙
• clay -core gravel sand dam 砂砾石粘土心墙坝
• clay central core embankment dam 粘土心墙土石坝
• inclined clay -core wall 粘土斜墙
• clay sloping core roch -fill dam 粘土斜心墙堆石坝
• clay core wall 粘土心墙
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