даже при
• Even with such defects single-heterostructure lasers with a room-temperature threshold as low as about 8000 amperes per square centimetre have been made.
Русско-английский научно-технический словарь• Even with such defects single-heterostructure lasers with a room-temperature threshold as low as about 8000 amperes per square centimetre have been made.
Русско-английский научно-технический словарь