通过实验，分析了菲涅尔透镜在提高太阳能利用率时的各种损失因素。
Various loss factors which may occur when the Fresnel lens is used to improve the utilization of solar energy are analyzed experimentally.
分析了液体火箭发动机中所用涡轮的各种损失因素，并建立了相应的数学模型，给出了计算方法。
The loss factors in liquid rocket turbine are analysed in detail and a related mathematical model and calculation method is proposed.
和许多投资者一样，蒂德曼出于对税务因素的考量在去年12月抛售黄金以锁定损失。
Like many investors, Mr. Tiedemann sold gold in December to lock in losses for tax purposes.
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