в течение

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.