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套筒導(dǎo)向結(jié)構(gòu)使得閥芯在運(yùn)動(dòng)過(guò)程中保持穩(wěn)定的軸向位置，減少因偏移或振動(dòng)而引起的不穩(wěn)定性，能夠提供較高的控制精度和穩(wěn)定性。

The sleeve guide structure keeps the valve core in a stable axial position during movement, reducing instability caused by displacement or vibration, and providing high control accuracy and stability.