– High productivity ratio 高的比生产率 Acetone butanol fermentation by Two-step continuous culture 丙酮丁醇二步连续发酵 ..
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So horizontal well has relatively high production and productivity ratio.
因此，水平井具有较高的产量和产能比。
The results indicated that calcium carbonate whiskers. as a kind of new whisker material, have the advantages of good uniform. high perfect crystal ratio and high productivity.
结果表明：碳酸钙晶须具有均匀性好、完整单晶率高、晶须产率高等特点。
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