请翻译出invsion的意思
As Westvaco has no history of LIFO invasions,we cannot assume that its inventories will be liquidated without violating the goiong-concern assumption.

1. 入侵,侵略
France itself was threatened with invasion.
法国自身也受到入侵的威胁。
2. 侵害,侵犯
I object to these invasions of my privacy.
我反对这些侵扰我私生活的行径。
3. 拥入,侵占
invasions of tourists
纷至沓来的旅游者
4. (疾病等的)侵袭
an invasion of cholera
霍乱的侵袭

正如伟没有后进先出历史上的侵略，我们不能承担，其库存将被清算不违反关怀假设。