...固井；促凝剂；固井水泥；低温早强；防窜；静胶凝强度 [gap=1439]keywords：deepwater cementing; accelerator; oil well cement; high early strength at low temperature; prevention fluid migration; static gel..
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[建]?油井水泥
... oil washed air cleaner 油浴空气过滤器 oil well cement 油井水泥 omnia concrete floor 咬封混凝土楼板 ...