用“engine casing ”造句大全,engine casing 造句 国语站 造句 4.21K 大中小设置文字大小 Doors of engine casing and stair casing on main deck are of fire doors with self-closing device.Seal coating sprayed is currently used to adjust the gap between the blade tip and engine casing and improve engine efficiency. TAG标签:casing 造句 engine #