在有些油田卤水中，钡的浓度大于100毫克升。
Barium is found in some oilfield brines in concentrations greater than 100mg/litre .
着重介绍了具有优良性能的超细硫酸钡的制备及表面改性的新进展。
It emphasis on introduce the last progress of preparation the super-tiny barium sulfate and changing superficial capability.
介绍八水氢氧化钡制取高纯碳酸钡的工艺、产品质量及用户使用结果。
The process quality and using result of high purity barium carbonate prepared with barium hydroxide have been introduced.
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