at certain point during vs during compression

Examples:

• At a certain point during the meeting, she raised an important question.
• At a certain point during the day, the sun shines directly into the room.
• At a certain point during the movie, the plot twist was revealed.
• At a certain point during the year, the weather becomes extremely hot.
• At a certain point during the game, the team scored a winning goal.

Alternatives:

• at a specific time during
• at a particular moment during
• at a specific point during
• at a particular time during
• at a particular juncture during

Examples:

• During compression, the material undergoes significant changes in its properties.
• The machine operates at high speed during compression of the components.
• During compression of the data, errors may occur.
• The substance expands during compression in the chamber.
• During compression of the file, make sure to check for any corruption.

Alternatives:

• while compressing
• as compression occurs
• throughout compression
• when compressing
• amid compression