11 sentences

1. 他正在更换电路板上损坏的电容。

   tā zhèng​zài gēng​huàn diàn​lù​bǎn shàng sǔn​huài de diàn​róng.

   He is replacing a damaged capacitor on the circuit board.

   Source: Dong Chinese Dictionary

2. 在更换灯管之前，请务必先断开电源。

   zài gēng​huàn dēng​guǎn zhī​qián, qǐng wù​bì xiān duàn​kāi diàn​yuán.

   Be sure to disconnect the power supply before replacing the lamp tube.

   Source: Dong Chinese Dictionary

3. 这个阀门里的瓣已经磨损，需要更换。

   zhè​gè fá​mén lǐ de bàn yǐ​jīng mó​sǔn, xū​yào gēng​huàn.

   The flap inside this valve is worn out and needs to be replaced.

   Source: Dong Chinese Dictionary

4. 这辆汽车需要更换一个新的发动机。

   zhè liàng qì​chē xū​yào gēng​huàn yī gè xīn de fā​dòng​jī.

   This car needs a new engine.

   Source: Dong Chinese Dictionary

5. 这台机器的轴承由于磨损需要更换。

   zhè tái jī​qì de zhóu​chéng yóu​yú mó​sǔn xū​yào gēng​huàn.

   The machine's bearings need to be replaced due to wear and tear.

   Source: Dong Chinese Dictionary

6. 这个管道连接处漏水了，需要更换法兰。

   zhè​gè guǎn​dào lián​jiē​chù lòu​shuǐ le, xū​yào gēng​huàn fǎ​lán.

   This pipe joint is leaking and needs a new flange.

   Source: Dong Chinese Dictionary

7. 修理这台发动机需要更换几个原装配件。

   xiū​lǐ zhè tái fā​dòng​jī xū​yào gēng​huàn jǐ gè yuán​zhuāng pèi​jiàn.

   Repairing this engine requires replacing several original parts.

   Source: Dong Chinese Dictionary

8. 他的护照下个月就要到期了，需要去更换。

   tā de hù​zhào xià gè yuè jiù yào dào​qī le, xū​yào qù gēng​huàn.

   His passport expires next month and needs to be renewed.

   Source: Dong Chinese Dictionary

9. 技术员正在更换那个已经老化了的转换器。

   jì​shù​yuán zhèng​zài gēng​huàn nà gè yǐ​jīng lǎo​huà le de zhuǎn​huàn​qì.

   The technician is replacing that aging converter.

   Source: Dong Chinese Dictionary

10. 由于搬家，他不得不更换了所有证件上的地址。

    yóu​yú bān​jiā, tā bù​dé​bù gēng​huàn le suǒ​yǒu zhèng​jiàn shàng de dì​zhǐ.

    Because he moved, he had to change the address on all his documents.

    Source: Dong Chinese Dictionary

11. 这种模块化设计使得更换损坏的零件非常方便。

    zhè zhǒng mó​kuài huà shè​jì shǐ​de gēng​huàn sǔn​huài de líng​jiàn fēi​cháng fāng​biàn.

    This modular design makes it very convenient to replace damaged parts.

    Source: Dong Chinese Dictionary