backfilling

短语词组

短语

• backfilling plate 垫板
• backfilling bucket 斗式回填机
• backfilling finish 背面上浆整理
• Subsequent backfilling 嗣后充填
• backfilling E 回填
• backfilling assemblage 管沟回填队
• stage backfilling 阶段嗣后充填
• gravel backfilling 砾石回填
• gangue backfilling 矸石充填
• backfill material 回填物料；填充料
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