2 sentences

1. 这台机器采用液压传动系统。

   zhè tái jī​qì cǎi​yòng yè​yā chuán​dòng xì​tǒng.

   This machine uses a hydraulic transmission system.

   Source: Dong Chinese Dictionary

2. 飞机的液压系统突然失效，导致紧急迫降。

   fēi​jī de yè​yā xì​tǒng tū​rán shī​xiào, dǎo​zhì jǐn​jí pò​jiàng.

   The aircraft's hydraulic system suddenly failed, resulting in an emergency landing.

   Source: Dong Chinese Dictionary