răng cưa
/kɒɡ//kɑːɡ/The word "cog" has its origins in the 14th century Latin word "cogitare," meaning "to think" or "to reckon." This Latin word is a verb that is derived from the noun "cogita," which refers to a thought or a concept. In the 15th century, the word "cog" emerged as a noun in Middle English, referring to a unit of thought or a concept. Over time, the meaning of the word "cog" expanded to include a mechanical device that is a part of a machine, particularly in clocks and other mechanical devices. In modern times, the term "cog" has taken on a broader meaning, referring to any small part or unit that fits together with other parts to form a larger system or mechanism. This sense of the word "cog" is often used in phrases such as "cog in the machine" or "cog in the wheel," to describe a small but important part of a larger system.
one of a series of teeth on the edge of a wheel that fit between the teeth on the next wheel and cause it to move
một trong số các răng trên mép bánh xe khớp giữa các răng của bánh xe tiếp theo và khiến nó chuyển động
a wheel with a series of teeth on the edge that fit between the teeth on the next wheel and cause it to move
một bánh xe có một loạt răng ở mép khớp với các răng của bánh xe tiếp theo và làm cho nó chuyển động
All matches
