辅助作用的英文：
auxiliary effect

参考例句：

Public transportation plays a subsidiary role.
公共交通起辅助的作用。

auxiliary是什么意思：
adj. 帮助的，辅助的；附加的
n. 辅助者；助动词

Mercenaries and auxiliaries are useless and dangerous.
雇佣兵团和客军没有使用价值而且危险。

We will have a network of auxiliary .
我们将有一套辅助的网络系统。

auxiliary:Giving assistance or support; helping.
辅助的:给予帮助或支持的;帮助的。

The assistants will receive auxiliary rates of pay.
助手们可获得附加报酬。

The auxiliary buses are normally composed of metal clad switchgear.
厂用母线由铠装开关装置组成。

effect是什么意思：
n. 效果；作用；影响；印象；所有物
v. 使产生；使发生；引起

This parameter has no effect.
此参数不起作用。

The drug was of no effect.
这药无效。

The helpful effect on propellant slosh effects was a secondary consideration
推进剂晃动的有利性影响是一个次要的考虑因素。

She only dresses like that for the effect it creates/for effect.
她仅仅为了装样子才那样打扮.

The medicine was an effective purge.
这是疗效很好的泻药。