The structure of DNA, consisting of two DNA strands that join together and form a helical shape.
DNA的一种结构，由两条链组成，两条链结合在一起产生螺旋形。
As you have already noticed, the polypropylene tubing comes in a helical shape that is unusable for our needs.
正如您已经注意到，聚丙烯管材采用的是螺旋形状，是需要我们无法使用。
Helical rotor is the most important part of rotor flow meter, and its section shape is normally formed by involute and cycloid.
螺旋转子是转子流量仪表中的心脏零部件，其截面形状一般由渐开线和摆线组合而成。
Usually, there exist undercutting phenomena in helical groove milling process, which affect the accuracy and geometrical shape greatly.
螺旋槽成形铣削时普遍存在根切现象，在很大程度上影响到加工精度和几何形状。
Results The location, shape and displacement of fragment of zygomatic bone and zygomatic arch fractures were demonstrated stereoscopically through 3D images reconstructed from helical CT.
结果螺旋CT三维成像能够立体地显示骨折的部位、形态、骨折块移位特点和类型等空间信息。
Fortunately, however, the matrix has striped shape with a helical boundary conditions.
为实现矩阵快速求逆，文中采用了螺旋边界条件下谱因式分解的方法。
Instead, and as their name implies, the teeth on a helical gear are inclined at an Angle so that each tooth wraps on the gear's cylinder in the shape of a shallow helix.
反之，并作为其称号所暗示地，牙齿上地螺旋齿轮倾向于一个角度，使每一个齿完毕对齿轮地圆筒外形地浅螺旋。
Instead, and as their name implies, the teeth on a helical gear are inclined at an Angle so that each tooth wraps on the gear's cylinder in the shape of a shallow helix.
反之，并作为其称号所暗示地，牙齿上地螺旋齿轮倾向于一个角度，使每一个齿完毕对齿轮地圆筒外形地浅螺旋。
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