English to Russian Tech/Engineering Medical: Dentistry Coping

In the first step (optional), scan artefacts can be removed.
In the second step, the margin line is defined.
Thirdly, the die interface, i.e. the interface between the die
surface and the coping, can be constructed with the margin
line as a lower border.
In the fourth step, the die overlay (outer coping) surface is
constructed.
Step five (optional) offers an operation to remove or add small
amounts of material on the outer coping surface.

Спасибо за помощь!

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