Analysis of net assimilation rate and crop growth rate indicates that two peaks of photosynthetic activity occur during the growing season.

 
  • 凈同化率和作物生長(cháng)率分析表明,在生長(cháng)季節出現兩個(gè)光合活性高峰。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan