IEC TS 61994-4-4:2018 RLV EN 6a5576a6
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection - Glossary - Part 4-4: Piezoelectric materials - Single crystal wafers for surface acoustic wave (SAW) devices
现行
发布日期 :
2018-11-16
实施日期 :
AS 1348.3-1992
Road and traffic engineering - Glossary of terms Transport operation
现行
发布日期 :
1992-05-15
实施日期 :