Natural history, geography, and medicine stumble upon descriptions of existence, upon kinds and distinctions, which are not determined by reason, but by sport and adventitious incidents.
如自然历史、地理学和医学等皆陷于实际存在的规定，分类与区别，皆为外在的偶然事实和主观的特殊兴趣所规定，而不是由理性所规定。
The regenerated plantlets in Dianthus chinensis were obtained by two methods: through the redifferentiation of the callus and the adventitious buds induced directly from the explant.
通过诱导愈伤组织再分化和直接诱导不定芽这两种途径获得了石竹的再生植株。
The mechanism of formation of adventitious root induced by light or dark pretreatment was initially studied in stem of broad bean seedling.
以蚕豆幼苗为材料，对光、暗预处理诱导植物不定根生成的机理作了初步研究。
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