Point of a pin.

针头。

Something that is extremely small or insignificant.

极小的东西；无价值之物。

An extremely small or sharp point.

极小或及尖之点。

To locate precisely.

精确地找出方位。

Extremely fine or precise.

极为精确细微的。

Located, fixed, or directed with extreme precision.

精确地找出、固定或只是(目标)的。