In order to solve the problem of DDNP primary explosive applied in detonator, the NHN primary explosive was proposed to be substituted for DDNP.是什么意思_In order to solve the problem of DDNP primary explosive applied in detonator, the NHN primary explosive was proposed to be substituted for DDNP.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句