Việt
mẫu chuẩn thứ cấp thời gian
Anh
secondary time standard
stencil
style
standard form
standard pattern
standard sample
type specimen
Đức
sekundäre Zeitreferenz
Pháp
étalon secondaire de temps
secondary time standard /TECH,ENG-ELECTRICAL/
[DE] sekundäre Zeitreferenz
[EN] secondary time standard
[FR] étalon secondaire de temps
secondary time standard, stencil, style
secondary time standard, standard form, standard pattern, standard sample, type specimen