heavy air重空气heavyadj.大(量)的；重的；沉重的；猛烈的heavy atom derivative重原子衍生物heavy water moderator重水慢化剂heavy machinery works重型机器厂heavy bulletproof car重型防弹装甲汽车heavy physical labour重体力劳动heavy rimmed flywheel重辋飞轮heavy-current cable强电流电缆Heavy Machine Gun Pod重型机关枪外壳heavy-duty scaffold频繁使用脚手架Heavy-tailed claims重尾索赔