Ancient cranes lift cement and oil drums.
年代久远的起重机提起水泥和油桶。
Ancient cranes lift cement and oil drums.
古老的起重机升起水泥和油桶。
So it can be the raw material of fluid loss additive for oil well cement.
因此，可以把它作为油井水泥降失水剂的原料。
Study on optimazing measure of neat cement slurry and cement paste for oil well;
本文主要研究了磁化水对水泥砂浆和净浆性能的影响。
Cement job quality has very important effect on normal production and life of oil-water Wells.
固井质量对油气水井的正常生产及其寿命影响巨大。
Cement job quality has very important effect on normal production and life of oil-water Wells.
固井质量对油气水井的正常生产及其寿命影响巨大。
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