The company also installed a solar electric system which was designed to achieve maximum possible energy cost savings benefits while minimizing expenses.
该公司还安装了太阳能发电系统，它的目的是实现最大可能的节省能源成本优势的同时，尽量减少开支。
2
The method also cuts down maintenance expenses and saves electric energy.
这种方法消除了客房内噪音，减少了维修工作量，节省了电能。
3
The cost of the general conveyer belt accounts for 50% of complete machine cost; is the main operating expenses are electric expense.