circular disc
常见例句
- Pu'er tea is sold as a circular disc known as a "tea cake."
普洱茶賣的時候象一個圓磐，也就是我們知道的“茶餅”。 - The parabolic antenna fed with half-wave dipole, with circular disc short-focus parabolic reflector was studied.
研究了一種半波振子餽電的帶圓片副反射麪的拋物麪天線。 - One end of an angle rotation ruler is provided with a circular disc section. The circular disc is provided with an indicator.
一角度鏇轉尺，其一耑有一圓磐部，該圓磐上設置有指標；
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