|  | 1. | The exponent is a fraction or negative number . 指数是一个分数或负数。
 
 
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|  | 2. | Fractions of the phosphor are easily lost . 部分磷光体容易丢失。
 
 
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|  | 3. | Open the window a fraction , please . 请把窗户打开一点。
 
 
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|  | 4. | Earthworms comminute the mineral fraction of soils . 蚯蚓粉碎土壤中的无机物碎片。
 
 
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|  | 5. | It needed only a fraction of a second to behead him . 砍去他的脑袋只要短短的一瞬。
 
 
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|  | 6. | This is called the partial fraction expansion of p/q . 这叫做pq的部分分式展开式。
 
 
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|  | 7. | Antibodies were part of the r-globulin fraction of serum . 抗体是血清r-球蛋白的一部分。
 
 
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|  | 8. | Often it is a very small fraction of the main output . 它在主要产品中通常只占极小的比重。
 
 
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|  | 9. | Only a fraction of the a ions are in tetrahedral sites . 只有一部分A离子处在四面体的位置上。
 
 
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|  | 10. | This last small fraction of soil is most difficult to detect . 这些最后残留的少量油星很难探测。
 
 
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