pneumatical gate dosage for main and fine flow, aspiration junction openings;

[маус]

Помогите, пожалуйста, перевести electro-pneumatical gate dosage for main and fine flow, -flow section steplessly adjustable; aspiration junction openings.

Контекст:

ELECTRONIC NET WEIGHING MACHINE
Features:
- weighing system without lever,
with 2 DMS-loadcells;
- balance intake with electro-
pneumatical gate dosage for main and fine flow;
- flow section steplessly adjustable;
- casing of balance of welded steel
construction, with removable plug-doors and aspiration junction openings

Спасибо