a test run

Translations
пробный запуск
The engineers conducted a test run of the new software.
Инженеры провели пробный запуск нового программного обеспечения.
Definitions
A test run refers to a trial or preliminary execution of a process, system, or product to evaluate its performance, functionality, or reliability before full-scale implementation or production.
Words
a

article or possessive pronoun
один
test

adjective
пробный
run

noun
запуск