| 1. | The collagen in the serosa is made up of a triple helix molecular structure
绒毛膜上的胶原组成了三角形的落选分子结构。
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| 2. | A cow ' s serosa has a greater tensile strength than sheep gut and it is also longer
牛的绒毛膜要比羊的能承受更大的张力并且长度更长。
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| 3. | Once the beef serosa has been removed from the animal it is cut into long ribbons
一旦牛的绒毛膜移出了体外，它就被剪成长的“丝带” 。
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| 4. | Fortunately for tennis players , the serosa from a cow ' s intestine fits the bill nicely
对于球员所幸运的是，牛的肠子的绒毛膜足以应付比赛。
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| 5. | The collagen found in serosa has a molecular make - up that is designed to withstand the stretching and contraction of the intestine
绒毛膜上的胶原是以分子形式聚合，从而承受住肠子的拉伸和收缩。
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| 6. | Once the serosa ribbons have been washed , and any impurities removed , they are subjected to another round of quality control
一旦绒毛膜“丝带”被洗过，杂质被清除，它们将进入质量控制这一流程。
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| 7. | However , the serosa is only a small part of the intestine and it takes about three cows to produce one set of tennis string
然而，绒毛膜只是肠子的一小部分，所以3头牛的绒毛膜才能制造出一根网球线。
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| 8. | Some manufacturers believe so , and buy their serosa from specific sources in an attempt to maintain a consistent quality
一些制造商对此深信不疑，于是买这些地方的牛的绒毛膜去制造肠线，以获得持久的高质量。
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