The factors which influenced somatic embryogenesis and plantlet regeneration in Picea meyeri Rehd. et Wils. were studied in order to establish a high frequency embryogenetic system.
摘要为建立白杄体细胞胚胎发生及其生的
频率
统,对聚乙二醇及干化处理的影响进行了
统研究。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
A study conducted at Washington University found that rats not only enjoy being tickled, but high frequency recordings showed that they actually make the same laughing sound during a good tickle session than when they play with other rats.
华盛顿大学一项研究发现,老鼠不仅喜欢被挠痒痒,而且高频率
录
表明,当它们挠痒痒
时候,它们发出
笑
和与其他老鼠玩耍时发出
笑
是一样
。