Finally, the proportional electro-pneumatic changeover valve is designed, keeping in view the domestic technology and production capability.
最后结合我国现有的技术特点和工艺、生产能力，完成了比例电空阀的设计。
The tests show that the asymmetry of the pneumatic electromagnetic valve is the primary factor forming uncertainty of changeover system.
试验结果证明了气动电磁阀工作非对称性是换向器系统不确定度的主要来源。
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