Two patterns of air plane engine inlet hot-air anti-icer are introduced in this paper, one is circumferential anti-icer, the other is double skin corrugated chord direction anti-icer.
Even in the rude circumferential rim or wall of wax round a growing comb, flexures may sometimes be observed, corresponding in position to the planes of the rhombic basal plates of future cells.
飞
发动
对飞行安全具有十分重
，
周围粗糙
来细胞
