Nettl内特尔netn.网；网状物adj.净余的；纯粹的net pump pressure净泵压net-cord umpire司网裁判net national debt国债净额net counting rate净计数率net profit method[经] 净利法net expected gain期待净收益net uniform serie净均匀序列net caloric value净热值net heating value净热值,有效热值net free reserves自由准备净额