noun 下载 🔗分享 格栅基础, 交叉梁基。 A foundation of crisscrossing timber or steel beams, usually for spreading heavy loads over large areas. Examples : "The heavy machinery in the factory was supported by a strong grillage of steel beams under the concrete floor. " 工厂里那些重型机械设备是靠混凝土楼板下坚固的钢梁格栅基础支撑的。 architecture structure building material 与AI对话词汇游戏阅读练习