By theoretical study and computer simulation on cascaded M-Z interferometer,a flat-top interleaver with a(50 GHz)-spacing,made of three couplers and two interference arms,has been successfully fabricated.
对级联Mach-Zehnder干涉仪进行了理论分析和计算机模拟,并成功制作了50 GHz的平顶二级级联Mach-Zehnder干涉仪型间插复用器,整个结构由3个耦合器和2组干涉臂组成。
Constructing a Resource-Saving,Environment-Friendly and Modern Industrial Pingdingshan City;
资源节约环境友好与平顶山新型工业城市建设
Discussion on Characteristic of Rock Salt Deposit Genesis of Pingdingshan Salt Field,Henan Province;
河南省平顶山盐田石盐矿床成矿特征探讨
Geological characteristics and origin of Pingdingshan gold deposit;
平顶山岩金矿床地质特征及成因探讨
One was his Sunday hat and the other his everyday hat.
一顶周日戴，另一顶平常戴。
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.
A flat - topped submarine mountain.
平顶海山一种在海底的平顶山岭
A ceiling constructed with recessed panels.
花格平顶由凹形窗格建成的顶部
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”。
flat-top plastic bifocal
平顶塑料双焦点透镜
Ascending Triangle
上升三角形、平顶三角形
a pitched rather than a flat roof.
倾斜的而不是平的屋顶。
horizontal action jack (excl. hydraulic)
水平千斤顶（液压的除外）
the top of a (usually flat) roof.
通常指房屋的平的顶部。
pedestal voltage
平顶基座形脉冲电压
A musician at the top of her form.
水平处于顶峰的音乐家
Hiroshima Peace Memorial (Genbaku Dome)
广岛和平公园—原爆屋顶
Modulating pulse top unevenness
调制脉冲顶部不平度
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
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。
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
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