shelf life, quality guarantee period, expiration date 
Haltbarkeit 
durata di conservazione 
durée de conservation 
vida útil shelf life, quality guarantee period, expiration date 25 保质期 [-質-] bǎozhìqī (guarantee-quality-period) shelf life, quality guarantee period, expiration date: ~三个月 three month shelf life || 过了~ past the expiration date '
Bảo dưỡng đúng cách máy sẽ kéo dài tuổi thọ. 
Proper maintenance of the machine will prolong its lifespan.
Die richtige Wartung der Maschine verlängert ihre Lebensdauer.
การบำรุงรักษาเครื่องที่เหมาะสมจะยืดอายุการใช้งาน
正确维护机器将延长其使用寿命。