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helical burr是什么意思

helical burr

相关单词 helical burr

例句

Methods: The root canalroot canal orifice burs and helical drilling bits were prepared in advance. 方法: 采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管.
Objective To study the diagnosis value of helical CT singlet hilum of lung and mediastinal lymphadenectasis. 目的探讨螺旋CT对单纯肺门纵隔淋巴结肿大的表现及诊断.
The high laevorotation of L - cystine depends on a specially helical structure of its molecular. 指出了L - 胱氨酸高度的左旋性是由其分子的特殊螺旋结构决定的.
Two types of viral symmetry have been recognized, the cubical symmetry and helical symmetry. 已经证实病毒有两种对称型, 即立体对称和螺旋对称.
In a globular protein, certain portions of the chain are coiled into helical segments. 在球状蛋白中, 链的某些部分被盘成螺旋状.
The polynucleotide chain is helical. 多核苷酸键是螺旋形的.
A high - speed burr was used to decorticate the surface of C 2 lamina and C 1 arch. 使用高速球钻在C2椎板和C1椎弓表面去皮质.
She speaks with a Scottish burr. 她讲话时带苏格兰人的颤音r音.
She speaks with a soft West Country burr. 她说话带有一种西部地区浓重r音的口音。
I take it you're a friend of the Kellings, Mr Burr. 伯尔先生，想必您是凯林家的朋友吧？

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