2 sentences

1. 这个按钮可以控制座椅的升降。

   zhè gè àn​niǔ kě​yǐ kòng​zhì zuò​yǐ de shēng​jiàng.

   This button controls the raising and lowering of the seat.

   Source: Dong Chinese Dictionary

2. 织布机上的综丝可以控制经线的升降。

   zhī​bù​jī shàng de zèng sī kě​yǐ kòng​zhì jīng​xiàn de shēng​jiàng.

   The heddles on the loom control the raising and lowering of the warp threads.

   Source: Dong Chinese Dictionary