... fixed length field 固定长度字段 ; 固定长度栏 fixed radiation field 固定照射野 fixed-field file 固定字段文件 ...
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The results indicate that the vibration of thin flat plane loudspeaker with four corners fixed is anomalistic and the vibration radiation at far sound field doesn't have any directionality.
分析结果表明固定四角薄型平板的振动是不规则的,在远声场振动辐射是无指向性的。
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