adventive的例句（adventive在句子中的用法）

• European goosefoot with strong - scented foliage; adventive in eastern North America. 欧洲的一种藜属植物,叶具有强烈的气味; 被引入北美东部.
• A sharp demarcation of adventive embryos from zygotic embryos cannot be drawn. 不定胚与合子胚之间不能划分出明显的界限.
• The process itself is referred to as adventive embryogenesis. 其过程本身称为不定胚胎发生.