English ⇄ Arabic Bulgarian Chinese Czech Danish Dutch Estonian Finnish French German Greek Hungarian Italian Japanese Lithuanian Polish Portuguese Romanian Russian Serbian Serbian Latin Slovene Spanish Swedish Ukrainian

reference plane
piez.	المستوى المرجعى
tech.	سطح مرجعي
vac.tub.	سطح مرجعى
principal reference plane for a body in space
sat.comm.	مستوى مرجعي رئيسي, لجسم في الفضاء

reference plane: 2 phrases in 1 subject

Magnetics

2