TOSI锅炉29—V1—T型空气预热器热端加热元件的厚度为()mm,高度为()mm,材料为()。
参考答案:0.6;1000;碳钢
— How will she deal with the work?
— She doesn't want to do it by herself. She wants to ask someone else to do it, . [ ]
A. yet
B. instead
C. too
D. either
丙烯制冷压缩机因故停车时,乙烯精馏塔应作全回流运转。