折射望遠鏡

Simplified: 折射望远镜

zhéshèwàngyuǎnjìng ㄓㄜˊ ㄕㄜˋ ㄨㄤˋ ㄩㄢˇ ㄐㄧㄥˋ

    • refracting telescope

Character by character

Sources