... tree-root trust relationship 树根信赖关系 fir-tree root 枞树形叶根 axial fir-tree blade root 轴向枞树形叶根 ...
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straigght or curved fir-tree root 直或弯的枞树形叶根
fir tree root 杉形根
blade with external fir-tree root 外包枞树形叶根叶片
axial fir-tree blade root 轴向枞树形叶根
annular fir-tree blade root 周向枞树形叶根 ; 周向装入的枞树形叶根
fir-tree blade root 枞树形叶根
fir-tree straddle root blade 外包枞树形叶根叶片
inverted fir-tree blade root 外包式枞树形叶根
annular fir tree blade root 周向的枞树形叶根
This paper introduces a comparative study of vibration characteristics of two types of rotor blades that are attached to the disk by fir-tree root and pin respectively.
本文介绍关于两种转子叶片振动特性的比较研究，这两种叶片分别是用销钉和纵树形或燕尾形榫头联接到旋转轮盘上的。
They lived with their mother in a sand-bank, underneath the root of a very big fir-tree.
它们和妈妈住在一堆沙丘里，在一棵巨杉树的根下面。
They lived with their Mother in a sand-bank, underneath the root of a very big fir-tree.
它们和妈妈住在沙州上的一个很大的枞树洞里。
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