If it is not a metrology institute within the system, surveyors basically have no great role and there is no place to call them, but it is still possible to evaluate professional titles.

The full name of joint venture refers to the affiliated operation of enterprises, which is an industry term. It means that an institution or organization is subordinate to or affiliated with another institution or organization. Registered metrological technicians refer to professional technicians who are engaged in metrological verification, calibration, inspection, testing and other metrological technical work, have obtained the qualification certificate of registered metrological technicians of corresponding grades through examination, and are registered according to law.