年限

zhè yī hé tong de nián xiàn shì wǔ nián

这一合同的年限是五年。

The contract was for a fixed term of five years.

chǎn pǐn shǐ yòng nián xiàn

产品使用年限

service life of a product

zhí yè xué xiào xiū yè nián xiàn yǐ sān nián wéi yuán zé

职业学校修业年限以三年为原则。

The term of study at vocational schools shall be limited in principle to three years.