A larger harbor crane is often costly and maintenance charge is larger.

大型港口起重机往往价格昂贵，成本高且维护费用大。

Set up and maintain spare parts management system, control maintenance charge.

建立和维护零配件的管理系统，控制设施的维护费用。

Palletizing Robot has a few accessories and parts, so the maintenance charge is very low.

码垛机器人主要构成零件少，配件少，所以维持费用很低。

It is a type of economical aptitude pump unit which usually save energy over 50% than general models with convenient maintenance, simple adjustment, low maintenance charge on the safe side.

该机调参简易、维护方便、安全可靠、维护费用低，与常规抽油机相比节能50%以上，是一种智能型的节能抽油机。

In February 2002, the community decided to charge $0.25 per photo mainly to cover site maintenance fees, with 20% of charges going back to the photographer.

2002年2月，社区决定每张图片收费25美分，以支付网站的维护费用，其中20％的收费归摄影师所有。