ground beam是什么意思 ground beam怎么读
ground beam的用法和样例
- Prestressed anchor-chained piles and prestressed anchor-chain-framed ground brains are more and more used in high slope engineering in express ay construction.
摘要在高速公路建设中,预应力锚索桩和预应力锚索框架地梁越来越多地出现在高边坡工程中。
展开更多