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缓凝油井水泥
meaning in English
retarded oil well cement
Related Words
加速油井
缓射
缓张力
缓燃
缓卫
缓利
缓凝
缓诘
缓斜面
缓检年限
缓凝水泥
缓凝水泥浆
缓凝作用
缓判
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