center vent meaning in Chinese
单衩
中心空孔中心放气孔中心通风孔
中心孔
中央抽气口
Examples
- Thinning the crystal grain and increasing the center vent are effective approach to raise the limiting frequency of high permeability mnzn ferrite . through large quantities of experiments , we made progress in raising limiting frequency of high permeability mnzn ferrite . we prepared the broad band mnzn ferrite of which the initial permeability was 10000
通过采用上述实验中的优化配方、添加剂组合以及制备工艺,我们在高磁导率材料的宽频特性方面取得了很大的进展,研制出了起始磁导率磁导率为10000的宽频mnzn铁氧体材料,当频率达到300khz时,起始磁导率下降不到20 % ,其性能相当于epcos公司改进的t38材料。