Knoop test

短语

词形变化

Knoop tests 复数 Knoop tests

释义与例句

n.
  1. 1.

    A microhardness test in which a pyramidal diamond point is pressed into the polished surface of the test material with a known load, for a specified dwell time, and the resulting indentation is measured using a microscope.

词源

Developed by Frederick Knoop and colleagues at the National Bureau of Standards of the United States in 1939.

来源：wiktionary