提高/确保 + 安全性
The noun 安全性 (ānquánxìng) means 'safety' or 'security,' specifically referring to the quality or degree of being safe. The suffix 性 converts the adjective 安全 (safe) into an abstract noun, emphasizing safety as a measurable property. It is commonly used in technical, regulatory, and product-related discussions, such as 提高安全性 (to improve safety).
这款汽车的安全性在同级别中排名第一。
Zhè kuǎn qìchē de ānquánxìng zài tóngjíbié zhōng páimíng dì yī.
This car model ranks first in safety among its class.
网上购物时,大家最关心的就是支付的安全性。
Wǎngshàng gòuwù shí, dàjiā zuì guānxīn de jiùshì zhīfù de ānquánxìng.
When shopping online, what everyone cares about most is payment security.
新疫苗的安全性已经通过了严格的临床测试。
Xīn yìmiáo de ānquánxìng yǐjīng tōngguò le yángé de línchuáng cèshì.
The safety of the new vaccine has already passed rigorous clinical testing.