см. тж. в процессе ; во время ; на протяжении
• Stirring is continued during ( the course of ) the reaction.
• The decrease in neutral atom concentration during the course of the pulse ...
• Many thousands of major earthquakes are likely to occur in the course of a few million years.
• The outflow of Gulf Stream water over the course of a year ...
• This holds the swept signal constant throughout each sweep period.
• Most valves are assembled and shipped within two to four weeks.
• The light output of some quasars has been observed to change significantly in a matter of days.
• Over ( or During ) a period of several decades the group experimented with the infusion of fats.