重臂

zhòngbì

noun

Meanings

HSK 7-9

杠杆的重臂越短，省力效果越好。

Gànggǎn de zhòngbì yuè duǎn, shěng lì xiàoguǒ yuè hǎo.

The shorter the load arm of a lever, the more force it saves.

HSK 7-9

物理课上老师讲解了重臂和力臂的概念。

Wùlǐ kè shàng lǎoshī jiǎngjiě le zhòngbì hé lì bì de gàiniàn.

In physics class the teacher explained the concepts of load arm and effort arm.

usage

Standard physics-textbook term, paired with 力臂 (lìbì, effort arm). Reading is zhòng (heavy/load), not chóng (again). The lever rule: 力 × 力臂 = 重 × 重臂.

mistakes

重 here = zhòng ("heavy / load"), not chóng ("again, repeat"). Wrong tone makes it sound like "repeat-arm" - a non-word.

重 zhòng

臂 bì