см. тж. в современном виде
• One modern-day solution to these problems involves ...
• An up-to-date textbook ...
• In recent devices the conflicting demands of speed and sensitivity are met by ...
• Present-day processes of mineral accumulation are extremely slow.
• Present views are outlined below.
• Even the current models of the atom must be viewed as imperfect.
• Contemporary crystal rectifiers resemble what is ...
• In modern practice, the evaporators are usually worked by bled steam.
• Those boilers resembled the water-tube boiler of today .
• Cycle temperatures greater than 2300°R have not been found to be practical because of limitations of the present high-temperature materials and present turbine-blade cooling techniques.
• Present-day merchant vessels ...
• Present-day ( or Modern ) amphibians are highly specialized animals.
• Current engines ...
• Today's aircraft ...