2 sentences for 航行 (háng​xíng — fly)

1. 这架客机正在三万英尺的高空平稳地航行。

   zhè jià kè​jī zhèng​zài sān​wàn yīng​chǐ de gāo​kōng píng​wěn de háng​xíng.

   This passenger plane is cruising smoothly at an altitude of 30,000 feet.

   Source: Dong Chinese Dictionary

2. 飞行机械师在航行过程中负责监控发动机参数。

   fēi​xíng jī​xiè​shī zài háng​xíng guò​chéng zhōng fù​zé jiān​kòng fā​dòng​jī cān​shù.

   The flight engineer is responsible for monitoring engine parameters during the flight.

   Source: Dong Chinese Dictionary