熱ねつ疲ひ労ろう

noun

thermal fatigue

Engineering term for material degradation caused by repeated thermal expansion and contraction.

• 金きん属ぞく部ぶ品ひんは熱ねつ疲ひ労ろうによって亀き裂れつが生しょうじることがある。

  Metal parts can develop cracks due to thermal fatigue.

noun

heat exhaustion

Medical condition caused by overheating, often from prolonged exposure to high temperatures or strenuous activity.

• 熱ねっ中ちゅう症しょうの一ひとつに熱ねつ疲ひ労ろうがある。

  Heat exhaustion is one type of heat-related illness.