To test for water contamination, the research team deployed several chemical indicators that changed color in the presence of pollutants.

The machinist calibrated the dial indicators before measuring the shaft runout.

The pilot checked the bank-and-turn indicators before executing the steep turn.

The management team reviewed the key performance indicators before the quarterly meeting.

In the lab, acid-base indicators were used to determine the endpoint of the titration.

Before takeoff, the pilot checked the rate of climb indicators to ensure both engines were responding symmetrically.

Before takeoff, the pilots checked the rate-of-climb indicators to ensure both were functioning properly.

In our Latin class, the teacher explained how to form the imperfect indicative.

In Spanish, the present indicative is used to describe habitual actions and general truths.

Please include the ordinal indicator when formatting the date to avoid confusion.