同时作业费用增加，使得采油成本加大。

While operating charge increase, and the production cost enhanced also.

youdao

另外，可能要用不同预算项目中的资金支付作业费用，例如根据资金的可用性选择预算项目。

It might also occur that a job is paid from different budgets depending on the money availability for instance.

youdao

指出，制定旧油管检修标准，是提高检修质量，延长作业周期，降低作业费用，确保油田生产的根本途径。

So, formulating standards for repairing used oil tubes is the fundamental approach to improving repair quality to extend the service life of tubes and reduce the cost of oilfield production.

youdao