1、a tree with an unbranched trunk
樹干上沒有分支的樹。

2、Amylose The water-soluble fraction of STARCH. It is an unbranched bolymer of glucose units.
直鏈淀粉：用熱水溶解淀粉時，可以溶解的那部分淀粉，稱為直鏈淀粉，它不分枝。

3、Mitochondria are usually long, tubular in shape with branched or unbranched cristae.
線粒體長管狀，具多個不分枝或分枝的脊。

4、R2 represents a branched or unbranched alkyl group with 5 to 17 carbon atoms;
R2表示支化或未支化的具有5-17個碳原子的烷基；

5、And there are some unbranched or less branching stone cells in it.
葉肉中分布有少分枝或不分枝的石細胞，其細胞長軸與表皮垂直。

unbranched翻譯