rowlocks

with cross thwarts for seats and rowlocks for oars with which it is propelled.

有交叉横木座位和推动橡胶桨浅底小船。

It was that dull kind of a regular sound that comes from oars working in rowlocks when it's a still night.

这是每逢寂静夜晚，船桨在桨子上发出那种有节奏沉闷声音。