natural sand with stone
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circulation with natural pressure
自压循环
driving force with natural circulation
自然循环推动力
duck’s eggs with natural red yolk
天然红心鸭蛋
electrolyzer with natural circulation
自然循环电解槽
Evaporator with natural circulation
自然循环蒸发器
in accordance with natural environment
与环境相协调
infectious disease with natural foci
空间聚集性分析
measurement with natural marks
自然标志取穴法
Natural Sand
天然砂
自然砂
natural sand aggregate
天然砂石骨料
Natural Stone
天然石
天然石材
Natural stone material product
天然石材产品
Natural Stone Slab
天然石板
natural stone veneer
天然石表层
preservation of natural stone monument
石质文物保护
Unified catologue for natural stone
天然石材统一编号
urea prilling tower with natural ventilation
自然通风尿素造粒塔
areas with sand and coarse sediment
多沙粗沙区
calcareous sand stone
灰质砂岩
Cold Production with Sand Inflow
出砂冷采
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最小点燃能量液力传动装置EXPANSIVE SOIL SUBGRADE三峡工程升船机field winding lead楼板振动heat rate economyMasking animationprocess decomposition