There are multiple definitions - click on the translation that matches your context.

先进先出

词组

full

first in, first out

phrase

Definitions of first in, first out

English

a method of stock control where the first goods bought or produced are the first ones used or sold

The COMPANY shall deliver the PRODUCT to its customers on a first in, first out basis.

English

an accounting method based on the idea that first goods bought or produced are the first ones used or sold. The total value of all goods left at the end of the year is based on the most recent price.

Value is determined at the lower of cost or market on a first in, first out basis.

English

an employment policy where the first people employed by an organization are the first to go if jobs are cut

We've adopted a first in, first pout redundancy policy to keep our workforce fresh.