The follow-on task order has one base year and four, one-year options.

后续的工作有一个基准年。

The 50 percent goal is not linked to any specific base year for calculation.

50%的目标没有一个具体的参照年份，无法计算。

The base year shall be the first profit-making year of the enterprises.

基期年份为此类企业第一个盈利年。

Hence the amounts of the base year are fixed by a specific parameter setting.

因此基地年的数量是被一个特定的参数集设定的。大哥大姐。

Any year can be selected as base year, but it is more reasonable to select a recent year as the base year.

任何年份皆可选作基年，但一般以较为近期的年份作为基年比较可取。