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The name of the mathematical unit
The first one: trigger force 15-3 1N (N is force, 10N = 1Kg).

Seconds: 335 meters per second (meters per second, speed unit)

Third: ≤70MPa (MPa, pressure unit)

Fourth:-40 degrees Celsius -+43 degrees Celsius (between 40 degrees below zero and 43 degrees above zero)

Fifth: ≤28J (Joule, abbreviated as the unit of scorch heat)

Sixth: ≤ 12J/cm2 (pronounced as 12 joules per square centimeter. The last two represent squares)

Seventh: 2+0.5s (this is a range, meaning 1.5 to 2.5. The s at the back stands for seconds.

Eighth: ≥ 20m2 (greater than or equal to 20m2. The last two are pronounced "squares")