см. тж. жизненно важен для ; играть важную роль ; исключительно ~
• This inertness is the most salient characteristic of the DNA molecule.
• A critical question ...
• The spectrophotometer is a key element in the process.
• Whenever dyeing is a paramount requirement ...
• An essential ( or important ) feature of the device is ...
• A major application of the high vacuum environment is in the design of vacuum tubes.
• A vital part of the magnetron is the permanent magnet.
• This approach is of significance despite the complexity of ...