通风机能力不足或过剩时应采取哪些技术措施?
参考答案:①调整叶片安装角;
②调整通风机转速;
③换电机;
④更换通风机;
⑤通风机联合运转。
Three days later,the torchbearers________the Olympic torch relay in Ningbo of Zhejiang Province.
A.took up
B.picked up
C.brought up
D.put up
计算题:某高炉烧结矿槽有六个,每个槽的设计容积为566m3,其有效利用系数为0.75,试求满槽烧结矿共有多少?当高炉焦批为16t,焦炭负荷为4.0t/t,烧结配比为70.0%,料速为7个/小时。试求满槽烧结能用几小时?(烧结堆比重取1.60t/m3)