The effect of PPF and DIF on plantlet growth of potato in vitro under photoautotrophic condition was investigated.
研究了光通量和昼夜温差对自养培养马铃薯试管苗生长的影响。
2
This standard adds a data integrity field (DIF) to each sector to maintain data protection on the medium.
这个标准为每扇区都增加了一个数据完整性字段(DIF)以保护介质上的数据。
3
Most people are more tolerant and accepting of a person who has inborn dif - ferences than they are of a person who, in their opinion, makes an unacceptable choice.