1.
One was his Sunday hat and the other his everyday hat.
一顶周日戴，另一顶平常戴。
2.
Flat roofs are basically either shed or lean-to roofs.
平屋顶基本上是单坡屋顶和单斜屋顶.
3.
A flat - topped submarine mountain.
平顶海山一种在海底的平顶山岭
4.
A ceiling constructed with recessed panels.
花格平顶由凹形窗格建成的顶部
5.
The place at the top of the mountain is called the Peak.
山顶上的那个景点叫做“（平山）顶”。
6.
flat-top plastic bifocal
平顶塑料双焦点透镜
7.
Ascending Triangle
上升三角形、平顶三角形
8.
a pitched rather than a flat roof.
倾斜的而不是平的屋顶。
9.
horizontal action jack (excl. hydraulic)
水平千斤顶（液压的除外）
10.
the top of a (usually flat) roof.
通常指房屋的平的顶部。
11.
pedestal voltage
平顶基座形脉冲电压
12.
A musician at the top of her form.
水平处于顶峰的音乐家
13.
Hiroshima Peace Memorial (Genbaku Dome)
广岛和平公园—原爆屋顶
14.
Modulating pulse top unevenness
调制脉冲顶部不平度
15.
A recessed panel in such a ceiling.
花格平顶的凹板在这样平顶上的凹形窗格
16.
These corrugated sheets often are used to make the roofs of houses.
这些不平的金属片平时用来做屋顶。
17.
A flat facet cut across the top of a precious stone.
切平面在一颗宝石的顶部切出的平面
18.
A platform at the top of a ship's foremast.
前桅楼，前桅平台轮船前桅顶部的平台