总结现有公路的不足之处，提出新型防雨雪高速公路概念，并对防雨雪高速公路的意义及必要性进行阐述。
The paper summarizes the shortcomings of present highways, and expounds the concept and the significance of rain and snow prevention expressway of new type.
本实用新型所提供的自行车座多用护罩，在自行车停放不用时，可遮盖在自 行车座上，用于车座防尘、防晒或防雨雪。
While not in use temporarily and laid still, a bicycle can be covered by the multi-purpose shield in the utility model for preventing dust, sunshine, rain or snow;
包括框架、覆面材料、图案印刷层、防风、防雨雪构造，以及夜晚作为照明的灯光设施，使得其在单件复制成本高于其他广告。
Including frames, cladding materials, design printed layer, wind, rain and snow proof structure, and the night lights as the lighting facilities, making it the single copy costs more than other ads.
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