n.航空剎車裝置; 用剎車裝置使飛機(jī)制動(dòng)
Over the next seven months, the orbiter will "aerobrake," dipping into Mars' atmosphere and gradually changing its elliptical orbit into a near-circle about 185 miles above the planet's surface. 麥克尤恩說，在這個(gè)較低的軌道上，科學(xué)家們甚至能夠看清火星表面上3英尺(1米)寬的物體。
