IEC TS 61994-4-1-2018
频率控制、选择和检测用压电、介电和静电器件及相关材料术语第4-1部分:压电材料合成石英晶体
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection - Glossary - Part 4-1: Piezoelectric materials - Synthetic quartz crystal