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 .
应用发射光谱技术研究了T12荧光灯阴极电子发射材料钡的损失。
Emission spectroscopic techniques are employed to study the loss of thermionic emission material barium from the cathode of a T12 fluorescent lamp.
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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