На этот раз дизайнерам необходимо б

На этот раз дизайнерам необходимо было тщательно продумать, как вписать в элитный фундаментальный дизайн современную технику, чтобы она не выглядела неким чужеродным предметом, нарушая общую гармонию интерьера.

Результаты (английский) 1:

This time, designers, it was necessary to think carefully about how to enter the elite fundamental design of modern technology so that it does not look like some alien subject, breaking the overall harmony of the Interior.

Результаты (английский) 2:

At this time, the designers had to think carefully about how to enter the elite fundamental design of modern technology, so that it did not seem certain foreign objects, disrupting the general harmony of the interior.

Результаты (английский) 3:

The designers should have been carefully thought out, as well as write the elite fundamental design modern technology, to ensure that it did not look like some sort of alien, without violating the overall harmony interior.