heavy sky阴天heavyadj.大(量)的；重的；沉重的；猛烈的heavy bombardment aeroplane重轰炸机heavy metals immobilization重金属固化Heavy Boiling Water Reactor沸腾式重水反应堆heavy machinery enterprises重型机械企业Heavy-duty semi-trailer重型半挂车heavy-route earth station重路由地面站heavy-load transportation重载运输heavy and medium plate mill中厚板轧机heavy equipment transporter重型运输机Heavy Duty Recovery Vehicle重型防御车