Straight, slender bars, poles, or staffs

• Poles forming parts of frames, tents, or awnings

细长的棍、杆、棒或竿

• 用于骨架、帐篷或遮篷等的杆件

Poles used for angling; fishing rods

用于垂钓的鱼竿

Graduated staffs sighted through instruments in surveying or construction

在测量或施工中通过仪器观测的刻度测量尺

Units of length, each equal to 16.5 feet (5.0292 m)

长度单位，每个等于16.5英尺（5.0292米）

Straight bars that link parts or transmit motion in machines

在机器中连接部件或传递运动的直杆

Photoreceptor cells in the retina for low-light vision

视网膜中的感光细胞，负责弱光视觉

Third-person singular of rod: equips with rods

• Third-person singular of rod: reinforces concrete with metal rods

动词 rod 的第三人称单数：用杆件装备

• 动词 rod 的第三人称单数：用钢筋加固混凝土