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[今日口语] She is in a quandary about which university to choose.

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propellant explosive

抛掷炸药

同：	[n.] impulse explosive

The use of caseless propellant charges as the power source for projectiles and for explosive percussion tools such as nailguns is now established
目前，用无壳药柱作为弹丸及火药推进器(如铆钉枪)的能源已被认定。收藏

名词解释：

an explosive that is used to propel projectiles form guns or to propel rockets and missiles or to launch torpedos and depth charges
[同] impulse explosive, propellant explosive

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