bridges and bridging造句

例句与造句

1. The structure of simply supported - continuous system is now common used in small span bridges and bridge approach of large span
   简支转预应力连续的施工方法是中、小跨径桥梁和大跨度桥梁的引桥中普遍采用的结构型式。
2. In this thesis , one cycle controlled switching power amplifier is analyzed detailed in theory and researched in simulation and experiment . main work and conclusion are described below . first , the basic structure and operational principle of one cycle controlled half - bridge and bridge circuit are analyzed , and control equation are deduced
   主要工作和结论如下：首先，对单周控制的半桥和全桥开关功率放大器的基本结构和工作原理进行了分析，推导了具体的控制方程，建立了单周控制的全桥开关功率放大器的小信号模型。
3. It's difficult to find bridges and bridging in a sentence. 用bridges and bridging造句挺难的