running cost造句

1、The results show that the system keeps running well and the running cost is greatly reduced.
实践证明运转效果良好，可大大降低公司运行成本。

2、The running cost of generating power from tidal energy is very low.
潮汐能作为一种可再生资源，蕴藏量大，利用潮汐能发电，运行成本低。

3、On the other hand, the running cost to produce steel is relatively low.
而另一方面，生产钢铁的变动成本却相对低廉。