中波

Zhōng Bō Chinese-Polish

zhōng bō medium wave (radio frequency range)

天线

tiān xiàn antenna; mast; connection with high-ranking officials

制作

zhì zuò to make; to manufacture

方法

fāng fǎ method; way; means; CL:個|个[ge4]

图纸

tú zhǐ blueprint; drawing; design plans; graph paper

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