1.
spiral-shelled cephalopods.
螺旋形外壳的头足类动物。
2.
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
3.
Of or relating to a gastropod shell that coils clockwise and has its aperture to the right when facing the observer with the apex upward.
右旋的软体动物的螺形外壳上的螺线顺时针螺旋即顶点向上，面对观察者时，螺线向右旋转
4.
operculate seasnail of coastal waters with a short spiral shell.
滨海水域中有鳃盖骨的海螺，螺壳短而呈螺旋形。
5.
The coiled, flat, chambered fossil shell of an extinct mollusk belonging to the class Cephalopoda, which was abundant in the Cretaceous period.
菊石，鹦鹉螺化石已灭绝软体动物的螺旋形、扁平的化石外壳，属头足纲动物，大量存在于中生代
6.
Spiral and decreasing sharply in diameter from base to apex.Used especially of shells.
陀螺形的螺旋形的螺纹从基部到顶端逐步递减的，尤其用于贝壳
7.
For example, the spiral shape of a seashell has the symmetry of a golden spiral, another derivation of the golden ratio.
例如，贝壳的螺旋即与黄金螺旋（黄金比例的衍生形式）的比例相称。
8.
marine gastropods having smooth rounded short-spired shells.
有光滑的圆形短螺旋壳的海生腹足动物。
9.
Vibration-prevention Lathing Process for Long Shaft Circumference of Tapered Spiral Blades
锥形螺旋叶片长轴外圆防振车削工艺
10.
screw housing clearance
推运螺旋与壳间间隙
11.
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
12.
Any of various large, mostly edible marine snails of the family Buccinidae, having a pointed, spiral shell, especially Buccinum undatum, which is commonly eaten in Europe.
蛾螺一种蛾螺科的体积大、多数可食用的海螺，有尖的螺旋状外壳，在欧洲被广泛食用的
13.
state of being twisted in a spiral
被旋转成的螺旋形.
14.
A spiral-shaped cavity of the inner ear that resembles a snail shell and contains nerve endings essential for hearing.
耳蜗内耳的螺旋形内腔，像蜗壳，有主要用于听的神经末梢
15.
Numerical Simulation and Discussion of the Enhanced Heat Transfer Mechanism in Continuous Spiral-Shaped Baffle Shell and Tube Heat Exchangers
连续形螺旋折流板管壳式换热器强化传热机理的数值模拟
16.
genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites.
一种小的头足类动物，外壳呈多室螺旋状如已绝迹的箭石。
17.
freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral shell.
淡水、海水或陆栖的腹足纲软体动物，通常有外部包裹的螺旋壳。
18.
For example, the spiral shape of a seashell has the symmetry of a golden spiral,
例如，贝壳的螺旋即与黄金螺旋的比例相称，