The self-operated thermovalve is regulated and controlled by the composite spring which is composed by two cylinder-compressed coiled springs.
在自力式
中,采用圆柱压缩螺旋组合弹簧
为调节弹簧起着调节制的用。
The self-operated thermovalve is regulated and controlled by the composite spring which is composed by two cylinder-compressed coiled springs.
在自力式中,采用圆柱压缩螺旋组合弹簧为调节弹簧起着调节制的用。
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