质量 (zhìliàng)

质量 refers to the quality or standard of a product, service, or work, and in physics also means mass.

Meanings

[noun] quality; standard; level of excellence
[noun] mass (in physics)

Example Sentences

这家工厂生产的产品质量很高。 Zhè jiā gōngchǎng shēngchǎn de chǎnpǐn zhìliàng hěn gāo. The products made by this factory are of very high quality.

我们要提高工作质量，而不仅仅是速度。 Wǒmen yào tígāo gōngzuò zhìliàng, ér bù jǐnjǐn shì sùdù. We need to improve the quality of our work, not just the speed.

质量比数量更重要。 Zhìliàng bǐ shùliàng gèng zhòngyào. Quality is more important than quantity.

消费者越来越注重产品的质量。 Xiāofèizhě yuè lái yuè zhùzhòng chǎnpǐn de zhìliàng. Consumers are increasingly paying attention to product quality.

Collocations

Collocation	Meaning
产品质量 (chǎnpǐn zhìliàng)	product quality
提高质量 (tígāo zhìliàng)	to improve quality
质量控制 (zhìliàng kòngzhì)	quality control
生活质量 (shēnghuó zhìliàng)	quality of life

Usage Notes

In everyday Chinese, 质量 almost always refers to quality in the sense of excellence or standard. The phrase 生活质量 (quality of life) is very common. In academic or scientific contexts, it also means "mass." Do not confuse 质量 with 数量 (shùliàng, quantity) — these are frequent antonyms in discussions about work and production.

Memory Hook

质 (substance/essence) + 量 (measure/quantity) — quality is the measure of something's true substance and worth.