1.
Classification and Function of the Basic Helix-loop-helix Protein Class
螺旋-环-螺旋蛋白家族的分类和功能
2.
spiral part of a screw
（螺钉的）螺旋部分.
3.
helical gear with helix angle
带螺旋角的螺旋齿轮
4.
paranemic spiral
平行螺旋，反向双股螺旋
5.
helical curve [ line ]
螺旋曲线螺旋(取向)照相
6.
curled or wound (especially in concentric rings or spirals).
卷曲的（同心环或螺旋线）。
7.
ring with coil-spring expander
螺旋弹簧胀圈活塞环
8.
fixed pitch propeller
定螺距螺旋桨固定螺距螺旋桨
9.
Of or having the shape of a helix;spiral.
螺旋形的，螺旋（线）的（拥有）螺旋形或螺旋线的；螺旋的
10.
A spiral formation, such as one of the whorls of a gastropod shell.
螺旋形一种螺旋形状，如一个涡螺壳上的螺旋
11.
hydrauliccontrol pitch propeller
液压操纵螺距螺旋桨
12.
controllable pitch propeller oil pump
可调螺距螺旋桨油泵
13.
controllable pitch propeller control box
可调螺距螺旋桨控制箱
14.
fixed screw propeller shrouding
定螺距螺旋桨导流管
15.
controllable pitch propeller hub
可调螺距螺旋桨桨毂
16.
mechanical controllable pitch propeller
机械式可调螺矩螺旋桨
17.
A jack operated by a screw.
螺旋起重机，螺旋千斤顶由螺旋杆运作的起重机
18.
propeller,esp of a ship or motor boat
螺旋桨（尤指船的）