METHODS: Soluble collagen was extracted from calf fetus skin and was made nonantigenic with pepsin.
方法: 可溶性胶原蛋白从小牛皮中提取,用胃蛋白酶处理而去除其抗原性.
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当橡胶颗粒体积含量百分比一定,剪切带首先从小颗粒周围萌生,而颗粒尺寸对宏观力学性能的影响是不明显的.
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SOT : PEDRO ( ENGLISH ) BACK AT THE WORLD CUP , ENGLAND ARE THROUGH TO THE NEXT STAGE.
还是回到世界杯上吧, 英格兰队已经成功从小组出现了.
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It was performed by a gentleman supremely advanced at age in the art of cutting.
这就是从小具有修枝剪叶的高超技艺的绅士所干的事.
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