努普显微压痕硬度试验仪的英文

knoop

• 努:    put forth; exert
• 普:    general; universal
• 压:    press; push down; ...
• 痕:    mark; trace
• 硬度:    hardness; solidity ...
• 试验:    experiment; test; ...
• 仪:    appearance; bearin ...