Permeability is measured by constant pressure air source blowing, core of the detector is micro differential pressure sensor.

透气性测定通过恒压气源吹气测压法实现，透气性探头的核心部件是微压差传感器。

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Therefor, it is greatly significant to clarify the mechanism of sand blowing process so as to control the production of sand core.

由于砂芯通常采用射芯的方法来制造，因此，了解射砂过程的机理，并且在此基础上对射砂过程加以控制，就显得至关重要。

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The most advanced Counter Blowing of Core Canister Impulse is adopted in dust-cleaning equipment, that makes high efficiency.

除尘装置采用世界上最先进的芯筒脉冲反吹式，除尘效率高。

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