他在一棵樹下面停了下來，以便判明自己的方位。 He pauses a moment at the foot of a tree to take his bearings.
翼剖面；機(jī)翼；翼面一個部件或平面，如機(jī)翼、螺旋槳葉、方向舵等，其形狀或方位控制穩(wěn)定性、方向、抬升、沖擊或驅(qū)動 A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
登山的人在濃霧中難以確定自己的方位。 The mountaineers found it difficult to orientate themselves in the fog.
