例句與造句

1. Grillage girder is always used for analysis the structures , such as dense ribbed slab , superstructure of bridge and grid - mat foundation . in this paper , a mechanical model for grillage girder by elastic supporting is proposed , and used for analysis the track structure for the first
   交叉梁系一般用于求解密肋式屋面板、橋梁上部結(jié)構(gòu)和格式基礎(chǔ)等結(jié)構(gòu)，本文提出一種彈性支承交叉梁系模型，并首次用其求解軌道結(jié)構(gòu)。
2. It's difficult to find grid-mat foundation in a sentence. 用grid-mat foundation造句挺難的