轴线

Traditional form:

軸線

Pinyin (reading):

zhóuxiàn

Definitions:

• central axis (line)

Characters:

• 轴 - axle, pivot, shaft; axis
• 线 - line, thread, wire; clue, trail

Traditional characters:

• 軸 - axle, pivot, shaft; axis
• 線 - line, thread, wire; clue, trail