基本解释廻轉式空氣預熱器同根派生 airpreheater相关词英汉例句Ash Blockage on Airpreheater of No.2 Boiler in Sha-jiao Thermal Power Plant B 沙角B電廠2號爐空氣預熱器堵灰分析及對策airpreheater更多例句