The aviation bomb is flying in the high density atmosphere layer. Its fight Mach number is generally 0.9.

航弹主要是在稠密的大气层中飞行，巡航马赫数一般在0.9附近。

youdao

In the method particle trajectory model of certain aviation bomb is chosen, drag law by the numerical simulation based on the virtual wind-tunnel is adopted.

该方法选用航空炸弹质点弹道模型，采用虚拟风洞数值模拟得到的炸弹阻力定律，结合实弹靶试数据，对弹道系数进行了符合计算。

youdao

In this paper aimed at the application problem of certain aviation bomb for a certain fighter, a coincidental calculation method of bomb ballistic coefficient is proposed.

针对某型战机上挂载使用某型航空炸弹的问题，提出了一种炸弹弹道系数的符合计算方法。

youdao

In New Jersey, authorities raised security statewide, calling in off-duty state police officers and deploying bomb units, aviation crews, tactical teams and search and rescue assets as a precaution.

WSJ: Security beefed up worldwide after Boston blasts