The board should have ropes attached to each end so you can loop it over your neck.
木板两端要与与绳索相连，使绳索能够缠绕过你的脖子。
The circularly polarized antenna (10) has a circuit board (25) arranged in parallel with the planar loop antenna element (122).
圆偏振波天线(10)具有与平面状环形天线元件(122)平行地设置的电路基板(25)。
The circuit board (25) has an area larger than that of the planar loop antenna element (122).
电路基板(25)的面积比平面状环形天线元件(122)大。
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