cushion course

短语词组

短语

• penstock with cushion course 垫层管
• cushion course detail 软垫层
• sand asphalt cushion course 沥青砂垫层
• asphalt cushion course 地沥青垫层
• cushion course treatment 垫层处理
• sand cushion course 砂垫层
• pile -top cushion course 桩顶垫层
• cement stabilizing gravel -sand cushion course 水泥稳定砂砾垫层
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