The Moon-based Earth Radiation budget Detector (MERD) is an instrument designed to measure the Earth-reflected Solar Radiation (ERSR) and the Earth thermal radiation from the Moon as part of future mission of China's Chang'e project. The accuracy of its calibration technology directly determines the measurement precision. For traceability to International System of Units... https://www.roneverhart.com/Gorra-Artesanal-con-Bordado-del-Estado-de-Guerrero-IMP-71325/