动词 roll out:

1. flatten or spread with a roller

2. straighten by unrolling

Rollon罗利翁rolln.卷；滚动；名单；压路机；颤音；圆形物，面包卷v.摇摆；滚；绕；转动；展开rolling moment coefficient滚动力矩系数roll sensing accelerometer滚动运动加速表rolling diaphragm actuator滚动薄膜式液压缸rolled compacted interface碾压层面rolling temperature region轧制温度区roll steering of rear axle后轴倾斜转向rolling code band splitter滚码频带分割器rolling compacted concrete碾压混凝土roll-type feed mechanism滚柱式进给机构rolling circle replication滚环复制

roll out铺开； 辗平； 转出；推出

roll forward out of approach to the beam木端前滚翻上

flying backward roll out双杠后空翻下

roll out the welcome mat热烈欢迎； 盛情接待

roll out the red carpetvi.隆重地欢迎(热忱接待)