自动数显洛氏硬度计的英文

• automatic digital di lay rockwell hard-tester
• automatic digital display rockwell hard-tester

• 自动:    voluntarily; of one's own ac ...
• 数:    frequently; repeatedly
• 显:    apparent; obvious; noticeabl ...
• 洛氏硬度计:    Rockwell apparatus; Rockwell ...
• 洛氏硬度计:    hr-150a; hrs-150; rockwell hardness meter; rockwell hardness tester, rockwell hardometer, rockwell apparatus; rockwell hardometer