Of the valve function barrier, the aortic insufficiency was most frequent.
瓣膜功能障碍中主动脉瓣关闭不全检出率最高。
What is the control function of the valve?
阀门的控制功能是什么？
The lower valve core performs a switching function.
下阀芯起开关作用。
Please check the electric-magnetic valve for emergency shut-down function.
请你检查应急停机电磁阀。
Please check the electric-magnetic valve for emergency shut-down function.
请你检查应急停机电磁阀。
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