Перефразируйте следующие предложения, употребляя пассивный залог. переведите полученные предложения. 1. this mechanism may involve an unknown factor. 2. we must regulate the temperature conditions. 3. the structural changes can produce a marked effect. 4. they may have disregarded smaller defects. 5. they might have neglected smaller errors.

An unknown factor may be involved by this mechanism
The temperature conditions must be ragulated by us
A marked effect can be produced by the sutructural changes
Disregarded smaller defects may have been by them
Smaller errors might have been neglected by them