Cog
01
齿轮, 嵌齿
a wheel with a set of square or triangular teeth sticking out around the edge that fits into the edge of a similar wheel, causing both wheels to turn
例子
Engineers designed the cog to have precisely angled teeth to minimize friction and wear within the machinery.
工程师设计了齿轮，使其具有精确角度的齿，以最小化机械内部的摩擦和磨损。
02
a minor participant who performs an important but routine function in a larger system
例子
The team is made up of skilled cogs, each handling their own tasks.
to cog
01
to join pieces of wood using interlocking projections called cogs
例子
Wooden panels were cogged together for added strength.
02
to roll, shape, or process steel ingots
例子
Steel is heated and cogged into long bars.
