单词 | ballistic body |
释义 | ballistic body [bǝ`lis·tik ´bäd·ē] ENGINEERING A body free to move, behave, and be modified in appearance, contour, or texture by ambient conditions, substances, or forces, such as by the pressure of gases in a gun, by rifling in a barrel, by gravity, by temperature, or by air particles. |
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