vis de réglage de petit débit
/ˈlaɪtlˈəʊd ɐdʒˈʌstmənt ˈskɹuː/
n
English: light-load adjustment screw · 轻载调节螺钉
Sens：Screw allowing the rotation speed of the disk to be adjusted so that it corresponds to light consumption, such as from a lamp, toaster or ceiling fan.