Time：
2017
-
06
-
09
In recent years, with the widespread application of computer technology, optoelectronic technology, digital technology, microprocessing technology, image display technology, automation technology, intelligent technology, etc., mechanical metrology has made a new leap. A large number of measurement standard devices with wide range and high accuracy have been established both domestically and internationally, involving mechanical quantities such as quality, vibration, pressure, force value, flow r...