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关注：1
2013-05-23 12:21
求翻译：Bentonite, pozzolans, glass microspheres, particles of coal or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
Bentonite, pozzolans, glass microspheres, particles of coal or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.
问题补充： |
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2013-05-23 12:21:38
膨润土，火山灰，玻璃微球，颗粒煤或沥青，纤维材料都可以使用，以减轻密度，并有助于防止漏失。
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2013-05-23 12:23:18
pozzolans, Bentonite glass microspheres, particles of coal, or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.
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2013-05-23 12:24:58
Bentonite, pozzolans, glass microspheres, particles of coal or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.
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2013-05-23 12:26:38
Bentonite, pozzolans, glass microspheres, particles of coal or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.
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2013-05-23 12:28:18
Bentonite, pozzolans, glass microspheres, particles of coal or asphalt, and fibrous materials can all be used to lighten the density and help prevent lost circulation.
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