“heavy bombardment”的概念、定义、翻译、参考文献-科学参考

单词	heavy bombardment
释义	heavy bombardment [`hev·ē bäm`bärd·mǝnt] ^ORDNANCE A bombardment of great intensity, especially one with large aerial bombs or other missiles.
随便看	beam lobe switching beam magnet beam parametric amplifier beam pattern beam pocket beam power tube beam pumping unit beam recording beam resonator beam rider beam-rider guidance beam riding beam sea beam splice beam splitter beam splitting beam spread Beams servoed rotational method beam steering beam storage beam switching beam-switching tube beam test beam tetrode beam well

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