树干: tree trunk; trunk; bole曲线: curve; curved line主干曲线: backbone curve茎，树干: stem生树干: green tree trunk树干，茎: shaft树干材: stem wood树干的: truncal树干火: fire in stems; stand fire; stem fire; stem-fire树干级: stem class树干式: trunk system栈树干: stack trunk矮秆树干: low-pole wood缠裹树干: trunk wrapping成熟树干: mature trunk粗壮的树干: a thick tree trunk deand resonant硅化树干: dendrolith化石树干: coffin lid扩基树干: buttressed trunk煤化树干: coal pipe树干，大衣箱: trunk树干；衣箱；总管: trunk树干的表皮: outer covering of tree trunk树干的直径: the diameter of a treetrunkk树干顶端: top of bole
