详细解释:n. 漂流, 漂流物
英语解释：
名词 driftage:
the deviation (by a vessel or aircraft) from its intended course due to drifting详细解释：
drift.age
n.（名词）Deviation from a set course caused by drifting.偏移：由于漂动而从既定路线上偏离Matter that has been carried along or deposited by air or water currents.漂流物：被气流或水流携带或沉积的物体