Simultaneously, because the expenditure of capitalconstruction and runing is costly, a lot of wastewater treatment processes are difficult to be used abroad.
同时废水处理工艺基建费用高，运行费用大而使得很多废水处理技术难以得到推广。
2
Note: expenditure for agricultural capitalconstruction since 1998 included the expenditure funded from additional issuing national debt.