I slowly press down the automatic descendingsystem, lowers towards the luminescent spot.
我缓缓地按下自动降落的系统，朝亮点降下去。
2
Because the current system is less precise, controllers need to give planes plenty of room as they lock onto the runway, descending in a slow, stepped approach.
因为现今的系统不够精确，飞机锁定跑道、一步步缓慢下降的过程中，空中交管员必须给飞机留有余地。
3
Endogenous descending inhibitory system plays an important role in the modulation of nociceptive transmission.