此种光学元件的结构种类包括锯齿状的菲涅尔面、柱面、球面、非球面、棱镜以及梯形等结构。
The sorts of structures of optical elements includes structures of Fresnel's surface, cylindrical surface, spherical surface, aspheric surface, prism and trapezoid.
而博伊尔一家则代表着其肮脏、都市化的一面。
The Boyle Family, on the other hand, stands for its dirty, urban aspect.
派尔以报道战争中人性的一面而闻名，他所写的是穿梭于脏乱雪地和烂泥的士兵，而不是通勤多少英里或攻占或解放了哪些城镇。
Pyle was famous for covering the human side of the warl, writing about the dirt-snow-and-mud soldiers, not how many miles were commuted or what towns were captured or liberated.
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