干气密封的流量变化与润滑油的温度变化有很大的关系。
参考答案：错
解析：润滑油的温度变化对干气密封的流量没有影响。
．It is very difficult to his mind because he is always changing his mind.
A．see
B．read
C．understand
D．find
复检和筛选费
