Its characteristics are corrosion proof, tension proof, undeformed, flame resisting, easy cleaning, aging resisting, breath freely and translucidus.

其主要特点为耐腐蚀、抗拉力、不变型、阻燃、易清洗、耐老化、气优良特。

Sunlight fades and brightens as the thicker (opacus) and thinner (translucidus) portions of this icy cloud move rapidly from the southwest.

云层较薄的部分（半明云）属于冰态云系，快速地从西南方移动过来。