tup造句
aBritishtermis`tup'.Standardtestmethodforimpactresistanceofrigidplasticsheetingbymeansofatup(fallingweight)Standardtestmethodforimpactresistanceofthermoplasticpipeandfittingsbymeansofatup(fallingweig...
aBritishtermis`tup'.Standardtestmethodforimpactresistanceofrigidplasticsheetingbymeansofatup(fallingweight)Standardtestmethodforimpactresistanceofthermoplasticpipeandfittingsbymeansofatup(fallingweig...