恒温阀
参考答案：
具有调节并保持室温稳定功能的阀门。
After he retired from office, Rogers painting for a while, but soon lost interest.
A．took up
B．saved up
C．kept up
D．drew up
“低温干燥”一般指不超过( )
A．30℃B．40℃C．50℃D．60℃E．80℃
