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| 41. | population is discussed at first, Then the way of liklihood ratio test is given to judge the problem about |
| 本文首先讨论了名义尺度总体的参数估计,然后在研究了似然比统计量极限分布的基础上,给出了两个名义尺度总体相等的似然比检验方法. |
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| 42. | That much light would equal about 56 moons. |
| 有些科学家说，16个这样的镜面，每个镜面的直径约半英里，能将反射光线对准地球上某个200×300英里见方的区域，这种光的强度大约相当于56个月亮。 |
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| -- 来源 -- 中级百科部分 - P_baikeduwu_kejiqita |
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| 43. | The moment of a force;the measure of a force's tendency to produce torsion and rotation about an axis |
| 转矩，力矩一种测量产生扭转和绕轴旋转趋势的力的单位，等于从旋转轴到力作用点的旋转矢量 |
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