Somatic embryogenesis and formation of adventitious buds in picea koraiensis .
红皮云杉体细胞胚形成及不定芽诱导。
Sometimes there come roots from stems , called adventitious .
有时从茎上冒出根来，它们称为不定根。
His knowledge of this particular bishop was somewhat adventitious .
他对主教当中这一位的了解，似乎多少事出偶然。
It is customary to treat dialectic as an adventitious art , which for very wantonness introduces confusion and a mere semblance of contradiction into definite notions .
辩证法通常被看成一种外在的技术，通过主观的任性使确定的概念发生混乱，并给这些概念带来矛盾的假象。
Adventitious bud induction and regeneration of sunflower .
