Profiles end powder frost after cold sealing for aluminium alloy profiles is generaed by over sealing of anodized film. 介紹了鋁合金型材常溫封孔后料端粉霜缺陷的產生機理，其實質是氧化膜的過封孔粉霜。
A teammate cannot leave the platform before an incoming swimmer has touched the end wall. 當一個選手還未觸及端壁時，下一個隊友不得從出發台出發。
Tracheids have heavily lignified walls and the only connection between adjacent tracheids is through paired pits, which are mainly concentrated in the end walls. 管胞的細胞壁高度木質化，相鄰管胞之間的僅有的連接通過集中位於端壁的成對存在的紋孔。
