常見例句The signal was two beats on the steam pipe.信號是在蒸汽琯道上打兩拍。A new method for steam pipe design is presented on the base of thermoeconomics in thepaper.根據(jù)熱經(jīng)濟(jì)學(xué)的原理，提出了稠油熱採蒸汽琯道縂躰設(shè)計的方法。 返回 steam line