单词	八个九位
释义	八个九位 eight nines
随便看	thin walled vessel thin-walled vessel thin-walled vessel head thin-walled wodcpiece thin-walled workpiece Thin-walled Workpiece thin-walled workpiece cutting thin-walled workpieces thin-walled workpieee thin-wall effect thin-wall elastic modulus thin wall external pressure vessels Thin wall FREPR pipe thin-wall galvanized steel pipe thin wall GM counter Thin wall grab bucket thin wall gray iron casting thin-wall hemispherical part thin wall high pier thin-wall high pier thin wall hollow crosssections thin wall hollow cross sections Thin Wall Hollow High Pier thin wall hollow pier thin wall hollow pipe