M2 flamethrowerとは 意味・読み方・使い方

The M2 flamethrower (M2-2) was an American man-portable backpack flamethrower that was used in World War II. It was the successor to the M1 and M1A1 flamethrowers. Although its actual "burn time" was around 47 seconds and the flame was only effective out to around 20 meters , it was still a functional weapon that had many uses in the war. However, with the later arrival of tanks and, especially, flamethrower tanks, the need for infantrymen to expose themselves to fire became unnecessary, as tanks offered greater protection and greater firepower