英语语法分析

The unballasted track by the pile-plank structure is a relatively new structure.

桩板结构路基-无砟轨道结构是一种相对较新的结构。

This paper covers design and application of long cantilever gantry crane used in the high-speed railways' unballasted track Boegl plate project.

介绍了高速铁路无碴轨道博格板大悬臂门式起重机的设计方案、结构组成及其在京津城际高速铁路博格板铺设施工中的应用。