吸烟导致每年有1万人死于慢性肺病。10,000 deaths a year from chronic lung disease are attributable to smoking.不用说，有肺病的人不应吸烟。It goes without saying that if someone has lung problems they should not smoke.每天上班我都要医治那些因吸烟患上肺病的垂危患者。Every worki...
Servos for large radars and launchers are either electro - hydraulic or all - electric.大型雷达和发射装置的伺服系统,不是电动 - 液压式的,就是全电动式的.In fact, it was clear that those were the electro - magnetic waves of Maxwell's theory.事实上, 很...