ceiling joist,ceiling rafter是什么意思

用法例句

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

The prevalence and control of endemic fluorosis in Pingdingshan City.;

河南省平顶山市地方性氟中毒病流行与防治概况

Changes of Landuse and Landscape Pattern in Pingdingshan City Based on Remote Sensing;

基于遥感的平顶山市土地利用及其景观格局变化研究

Study on the dynamic change of land use of Pingdingshan city based on RS;

基于RS的平顶山市土地利用动态变化研究

On the Environment Pollution and Prevention Countermeasure in Pingdingshan;

平顶山市环境污染与防治对策

Analysis of landscape pattern of land use in Pingdingshan based on 3S techniques;

基于3S技术的平顶山市土地利用景观格局分析

Study on the Strategic Focal Points of Scientific and Technical Development of Pingdingshan;

平顶山市科技发展战略重点浅析