1、Bell and Howell perforation: a film perforation shaped with flat top and bottom and curved sides.
貝爾浩型片(齒)孔：上下平行兩邊彎曲的膠片齒孔。

2、a flat top surmounted by ceremonial chambers
類金字塔一種相似建筑，尤指具有帶臺(tái)階的側(cè)面和布滿禮儀性房間的平頂?shù)乃拿娆斞抛鍙R宇

3、Forms a flat top making them suitable for automatic placement and reflow.
形成了一個(gè)平頂使其成為自動(dòng)貼裝和回流合適。

4、We reached the flat top of Blue Mountain. What a breath taking scenery on the top of Blue Mountain.
我們到了藍(lán)山平緩的山脊。這里的美景讓人感嘆。

5、I swept rainwater off the flat top of a gravestone.
我拂去一塊墓碑平頂上的雨水。

flat top翻譯