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双层预充填砾石绕丝筛管
释义
双层预充填砾石绕丝筛管
Encyclopedia
工学
机械防砂
释
self-cleaning performance
双层预充填砾石绕丝筛管
在双层绕丝筛管的两层筛网之间充填一定粒度的砾石形成的筛管。
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water level inscription in ancient China
water levelling in ancient China
water level observation
water level staff in ancient china
water level station
water lifting
water lifting cylinder wheel
water lifting irrigation
water lifting machinery in ancient China
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water lily
water-lily family
waterline
water-line section
water-logged compost
water logging
waterlogging
waterlogging control calculation
waterlogging control planning
waterlogging design
waterlogging disaster
waterlogging disaster in China
Waterloo Bridge
water loop heat pump system
water loss
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更新时间:2026/9/15 23:30:12