The results showed that both the cell-free extract and culture supernate from mouse SRS-82 cell line were leukemogenic.

结果表明 SRS-82 株的无细胞提取液和其培养上清液的离心沉淀物皆具有致白血病活性。

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The invention discloses a pig blood protein-free extract preparation, pertaining to the technical field of biochemical drugs.

本发明公开了一种猪血去蛋白提取物制剂，属于生化药物技术领域。

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The results of plant nutrients analysis showed that phosphorous was higher in the district of grazing in early time, crude ash and nitrogen-free extract were lower.

在草地植物养分的分析中，磷的含量在早期放牧小区内表现较高，粗灰分和无氮浸出物表现较低。

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But the most insidious subterfuge of Best Lists is how they extract free work from free-lance critics.

WSJ: Why Roger Ebert Loathes Top 10 Film Lists

In the face of rising programming costs and dwindling advertising fees, the American Idol network, like its rivals, is looking to extract a fee for a signal that was once free.

FORBES: Fox Could Prove The Bigger Loser In The Cablevision Blackout

Eliminating free radical production would involve completely redesigning aspects of our metabolism, especially the way we use oxygen to extract energy from food.

FORBES: The First Person to Live to 150 Has Already Been Born--Revisited!