| 摘要 |
<p>A surface structure of an article having a free surface including two kinds of surface parts (A) and (B) of different surface characteristics, wherein melting of the interface of ice or snow touching the surface part (A) takes place earlier than melting of the interface of ice or snow touching the surface part (B) when the free surface of an article is entirely iced or accreted with snow and then heated, and at least a part of ice or snow crystal on the surface part (A) and at least a part of ice or snow crystal on the surface part (B) are linked and moved gravitationally when the free surface of an article arranged in the vertical direction is entirely iced or accreted with snow and then heated. Ice or snow accreted to the surface can be stripped readily and gravitationally with a small energy.</p> |
