lethal threshold造句

例句与造句

1. :: : Yes, with a catalytic converter the CO level at the tailpipe is about 50 % below the lethal threshold.
2. This combination of extreme nighttime heat and humidity is a heat wave's most serious threat to health and life, many experts say, and the Gaffen-Ross study found that in some places, the frequency with which this combination exceeded a lethal threshold had doubled.
3. It's difficult to find lethal threshold in a sentence. 用lethal threshold造句挺难的