As an electric controlled element, electronic expansion valves have many advantages which traditional heat expansion valves don't have, such as high precision, and fast and correct action.
作为电控元件，电子膨胀阀具有传统的热力膨胀阀所不具备的精度高，动作快速且准确的优点。
An process of ion bombardment heat treatment for high dimension precision slender rods was discussed through treating the valves with different loading ways, heating temperature, and heating ways.
以气门的离子轰击热处理为研究对象，通过对装炉形式、处理温度及工艺方法等试验，探讨了尺寸精度要求较高的细长杆件的离子热处理工艺。
The electro-hydraulic servo valves in which some novel functional materials are applied to the actuators can have high frequency response and high precision and can be made by micromation.
与传统伺服阀相比，以新型功能材料为电-机械转换器的电液伺服阀，具有高频响、高精度和易于微型化等优点。
The electro-hydraulic servo valves in which some novel functional materials are applied to the actuators can have high frequency response and high precision and can be made by micromation.
与传统伺服阀相比，以新型功能材料为电-机械转换器的电液伺服阀，具有高频响、高精度和易于微型化等优点。
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