短語詞組短語ball burst testing 鋼球式頂破強力試驗;鋼球破裂試驗法ball hardness testing 布氏硬度測定ball hardne testing machine 布氏硬度試驗機ball hardness testing machellone 布氏硬度計ball hardness testing machine 布氏硬度試驗機;布氏硬度計;布式硬度試驗機ball indentation testing apparatus 球印硬度試驗機Ball Bar testing 以雙球桿校正four -ball friction testing machine 四球摩擦試驗機ball method of testing 鋼球壓印試驗法 返回 ball test