precautionary measure   (予防措置)

As a precautionary measure, mercury is not used in the vaccine formulation.

Ulvaeus paid the taxes as a precautionary measure during the 2½-year dispute.

The two boys were admitted to Taroom Hospital as a precautionary measure due to malnutrition.

precautionary measures   (予防策)

As precautionary measures, a few secondary roads were closed in the region.

However, frequently at the range of the crossing section, special precautionary measures are taken.

Along with other precautionary measures, the full-body zinc coating has proved to be very effective in preventing rust.