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关注：1
2013-05-23 12:21
求翻译：颗粒物质自然沙堆积密度的测量是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
颗粒物质自然沙堆积密度的测量
问题补充： |
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2013-05-23 12:21:38
Bulk density measurements of particulate matter in natural sand
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2013-05-23 12:23:18
Particulate matter of natural sand pile density measurement
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2013-05-23 12:24:58
Particulate matter natural sand stack density survey
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2013-05-23 12:26:38
Measuring the density of particulate matter accumulation of natural sand
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2013-05-23 12:28:18
particulate material natural sand buildup density measurements;
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