其气敏机理应是表面控制型。
The mechanism has been recognized to be surface-control type.
该型芯能用控制型芯表面质量的方式来避免铸件内孔中产生的系列疵病。
The core can effectively avoid defects of vent by controlling quality of mold surface, and it can also be used in structure of castings which is like s hole as well as hole of intricate bore.
该文介绍了一种采用脉冲密度调制(PDM)控制策略的串联谐振型塑料薄膜表面处理电源的研制。
This paper presents a pulse density modulated (PDM) series resonant inverter developed for plastic film surface treater. The use of the PDM inverter enables the constant frequency and voltage.
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