ประโยคภาษาจีน : 中文句子 |
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nóng zuò wù 农作物 gū chǎn 估产 shì 是 wǒ guó 我国 cháng qī yǐ lái 长期以来 jìn xíng 进行 de 的 yí xiàng 一项 zhòng yào 重要 kè tí 课题 |
During the past years, crop yield estimation has gained increasing concerns within scientific literature of china. |