入转化炉的水蒸汽流量为7t/h，请换算成Nm3/h。
参考答案：
把蒸汽重量流量换算成体积流量为：
7×1000×（22.4÷18）＝8711Nm3/h
The last thirty years _____ the greatest number of laws stopping our rights and progress,until today we
have reached a stage ____ we have almost no rights at all.[ ]
A. saw; which
B. have seen; that
C. saw; where
D. have seen; where
离心式压缩机缸体隔板受力特点是什么？
