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1. 高低速缝纫线迹长度误差 error of stitch length at different sewing speed
2. 鸟巢 bird nest
3. 1/4波长套筒平衡-不平衡变换器 quarter-wave sleeve balun; bazooka; USA
4. 1/4波长套简单元 quarter-wave sleeve element
5. 1/4波长扼流圈 quarter-wave choke
6. E 面扇形喇叭天线 E-plane sectoral horn (antenna)
7. E面透镜 E-plane lens
8. H 形天线 H antenna
9. H面扇形喇叭天线 H-plane sectoral horn (antenna)
10. H面透镜 H-plane lens
