adventive造句

1、The process itself is referred to as adventive embryogenesis.
其过程本身称为不定胚胎发生。

2、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。

3、On Adventive Creature Law
试论外来生物立法