主要是金属和布在材质上有强烈的反差，再加上铜线又有一种反光，强烈的视觉反差。
The main reason is there is a kind of strong contrast of the material between metal and cloth, furthermore, the reflection of light of the copper lines, to product an extreme vision contrasts.
宝丽希凯sx- 70是第一个主动对焦单镜头反光拍照机，于1978年发布。
The Polaroid SX-70 was the first autofocus single-lens reflex camera, released in 1978.
采用450d尼龙，600d与1680牛津布精制而成，配合大量的刺绣、电光标、反光标等工艺和材料。
Made of 450d nylon, 600d and 1680d Oxford with a lot of embroidery, reflecting pieces and so on.
采用450d尼龙，600d与1680牛津布精制而成，配合大量的刺绣、电光标、反光标等工艺和材料。
Made of 450d nylon, 600d and 1680d Oxford with a lot of embroidery, reflecting pieces and so on.
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