校核计算
参考答案:按锅炉已有的结构参数,在给定的锅炉负荷和燃料特性条件下,确定各个受热面的烟气温度、工质温度等,并同时确定锅炉的热效率、燃料消耗量等。
— Have you called Mr. Johnson’s office?
— Yes, he _____ back before tomorrow. So he can attend our meeting on time.
A.expected
B.is expected
C.is expecting
D.is to expect
检验效能