But such systems are very expensive, difficult to operate and maintain, and there's nothing to say about self-installation.
But such systems are very expensive, difficult to operate and maintain, and there's nothing to say about self-installation.
user
Але такі системи дуже дорогі, складні в експлуатації і обслуговуванні, і про самостійному встановленню тут навіть говорити нічого.
assistant