forward gun mount机关炮: machine cannon; machine-gun ...前: front固定: fixed; regular座: seat; place机关炮后固定座: aft gun mount; gun rear mount下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:机关炮前固定座，即可在微信中查询翻译
