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| 81. | percentage of mechanical handling |
| 机械装卸作业比重 |
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| 82. | test methods for density and relative density of chemical products |
| 化学产品比重测定法 |
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| 83. | specific gravity stoner |
| 比重去石机 |
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| 84. | density controller |
| 密度控制器|比重调节器 |
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| 85. | specific gravity in green |
| 未干燥材比重 |
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| 86. | percentage of clean-up |
| 清舱量比重 |
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| 87. | mud weight indicator |
| 泥浆比重指示计 |
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| 88. | oil well cement of high density |
| 高比重油井水泥 |
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| 89. | reservoir fluid gravity |
| 储层流体比重 |
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| 90. | Baume gravity system |
| 玻美比重系统 |
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