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过滤器开口
1、opening act───n.开场，开幕，开张；序幕
2、opening hours───图书馆开放时间，书店营业时间；（图书馆）开放时间；（书店）营业时间
3、opening game───[体]开幕式比赛；开放性开局
4、opening lines───[电]明线；（电话）开放线路
5、opening───adj.开始的；v.开放（open的ing形式）；打开；公开；n.开始；机会；通路；空缺的职位
6、opening argument───开场白
7、opening times───n.营业时间( opening time的名词复数 )；营业时间(openingtime的复数)
8、suspense opening───悬念开场
9、filter───n. (Filter)（德）菲尔特（人名）；v.过滤；渗透；用过滤法除去；慢慢传开；缓行；仅可左转行驶；n.过滤器；滤波器；筛选程序；分流指示灯
1、The calculation of loaded closing striking current of capacity and opening filter capacity bank voltage is illustrated by a few examples.───介绍电容器负载合闸冲击电流和分闸滤波电容器组电压的计算，并通过实例加以说明。
2、method of arranging orifices with varied opening area according to the pressure variation in the pipe is suggested in order to ensure the uniformity of water-distribution in the low head filter.───提出按管内压头来改变开孔面积的布孔方法，以便保证用于低水头滤池时布水的均匀性。
3、Cause: you did not have correct opening and closing of parenthesis in your search filter.───原因：您没有正确的开启和关闭括号在您的搜索过滤器。