ประโยคภาษาจีน : 中文句子 |
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zhǔ yào 主要 cǎi guāng 采光 shǒu duàn 手段 shì 是 gōng chéng 工程 dìng rì jìng 定日镜 yán zhì 研制 chéng yī tái 成一台 mǐ 米 yǒu xiào 有效 kǒu jìng 口径 dà xíng 大型 gōng chéng 工程 dìng rì jìng 定日镜 |
The major means of introducing daylight into the shaft is an engineering heliostat, which has an effective aperture of 2.4M and which has already been made by us. |