paperback. Condizione: New. Paperback.Pub Date:2021-04 Pages:107 Language:Chinese Publisher:China Metrology Press As of March 2021. there are 96 national metrology verification system tables issued and implemented in my country (95 of which are currently valid). Through the block diagrams of the verification system tables. we can not only find the main technical indicators of each level of metrological instruments. but also understand the specific operation mode of the verification system tables at a glance. This book c.