Rifle Double Base

• 步枪双基(火药)

Rifle Double Base的用法和样例：

例句

1. The results show that PDADN can increase burning rate and energy of nitramine modified double base propellant.
   结果表明添加叠氮酸酯是一种提高硝胺改性双基推进剂燃速与能量的切实可行途径。