Việt
góc ắp
góc áp lực ngang
Anh
transverse pressure angle
pressure angle
Đức
Eingriffswinkel
Stirneingriffswinkel
Pháp
angle de pression
angle de pression apparent
pressure angle,transverse pressure angle /ENG-MECHANICAL/
[DE] Eingriffswinkel; Stirneingriffswinkel
[EN] pressure angle; transverse pressure angle
[FR] angle de pression; angle de pression apparent