helicoidal

helicoidal的音标是[ˈhelikəuɪdəl]，基本翻译是螺旋状的，螺旋的，螺线形的。速记技巧是利用谐音速记法，“嗨里扣”意为螺旋形的。

helicoidal这个词源自希腊语，其词根为helix，意为“螺旋”。其变化形式包括名词的复数helicoids，形容词helicoidal，以及动词helicate。

相关单词：helix（螺旋）、helixoid（螺旋状的）、helicopter（直升机）、helicity（磁性）、helicity（旋转）、helicon（螺旋线）、heliconics（螺旋线学）、heliconism（螺旋线）、heliconism（螺旋线病）、heliconize（螺旋）。

例如，helix（螺旋）这个词在生物学中常用来描述DNA的形状，而在物理学中则用来描述电流的形状。而helicopter这个词则是一种利用旋翼升力的飞行器，其设计灵感来源于螺旋的形状。此外，helix这个词还可以引申出许多其他含义，如旋转、旋风等。总之，这个词在科学和工程领域有着广泛的应用。

helicoidal 常用短语：

1. helicoidal spiral 螺旋曲线

2. helicoidal curve 螺旋线

3. helicoidal surface 螺旋曲面

4. helicoid 螺旋线绕直线旋转而成的曲面

5. helicoidal wave 螺旋波

6. helicoidal motion 螺旋运动

7. helicoidal motion of a particle 粒子的螺旋运动

双语例句：

1. The path of a helicopter is a helicoidal curve. 直升机的行驶路径是一条螺旋线。

2. The surface of a screw is a helicoid. 螺丝表面的形状是一个螺旋线绕直线旋转而成的曲面。

3. The waves on the ocean are often described as helicoidal waves. 海洋上的波浪常常被描述为螺旋波。

4. The motion of a particle in a helix is a helicoidal motion. 一个粒子在螺旋中的运动是一种螺旋运动。

5. The path of a particle moving in a helicoid is a helicoidal wave. 一个在螺旋中运动的粒子的路径是一条螺旋波。

6. The surface of the screw is formed by rotating the straight line along the axis of the screw and the helix about this axis. 螺杆的表面是通过沿螺杆轴和螺杆绕该轴旋转的直线形成螺旋面。

7. The path of the screw is a helicoidal surface, which is formed by rotating the straight line along the axis of the screw and the helix about the axis of the screw. 螺杆的路径是一个螺旋面，它是由沿螺杆轴和螺杆绕螺杆轴旋转的直线形成的。

英文小作文：

Helicoids and their Applications

Helicoids are fascinating curves that can be used in various applications. They are commonly found in nature, such as snail shells and spiral galaxies, and are also used in engineering and architecture to create unique shapes and surfaces. Helicoids can be used to design mechanical components, such as gears and screws, and also in architectural structures, such as spiral staircases and curved walls. Helicoids provide a way to create complex shapes that are both functional and visually appealing. In addition, helicoids can be used to model wave motion and other dynamic phenomena, which makes them an interesting topic for scientific research and education. Therefore, studying helicoids and their applications can be rewarding both practically and intellectually.