英语语法分析

BACKGROUND: the methods of inducing the differentiation of bone marrow stromal cells into osteoblasts included the differentiation under chemicals effect, cytokine effect and transgenosis.

背景：现阶段诱导骨髓基质细胞分化成骨的方法大致分为在化学药物作用、细胞因子作用以及转基因作用下的分化等。

It is important to cultivate poplar that can resist insect. Transgenosis technology has become main means to improve the quality of insect-resistant of present plant by creating new varieties.

利用转基因技术培育抗虫杨树新品种已成为当前植物遗传改良的重要手段。