A lock or ringlet of hair.

• Hair shaped in a spiral.

一缕卷发；发卷。

• 呈螺旋形的头发。

To make something form curls or a spiral.

• To become curved, coiled, or wavy.
• To move or bend in a curve.

使某物卷曲或成螺旋。

• 变得弯曲、卷起或起波纹。
• 以弧线移动或弯折。

A small curved piece, coil, or twist.

• A curl of smoke, paper, or shaving.

小的弯曲物或卷曲物；盘绕。

• 一缕卷起的烟、纸卷或木屑卷。

A strength exercise bending a joint against resistance.

• Especially a biceps curl with a weight.

一种对抗阻力的弯曲力量训练。

• 尤指肱二头肌弯举。

To perform curls as a strength exercise.

• To bend the arm, wrist, or leg against resistance.

做弯举等力量训练。

• 使手臂、手腕或腿对抗阻力弯曲。

The vector operator ∇× and the resulting rotational field.

• A measure of a vector field’s tendency to rotate.

向量算子 ∇×（旋度）及其产生的向量场。

• 表示向量场旋转性的量。