concentrator
特殊用法acid concentrator1.■酸浓缩器automatic concentrator1.■自动集中器bed-type pneumatic concentrator1.■床层式风选机biological concentrator1.■生物浓缩者brine concentrator1.■盐水浓缩机cascade concentrator1.■阶式蒸浓器data concentrator1.■数据集中器flash film concentrator1.■薄膜蒸发器greased-surface concentrator1.■油面选矿机latex concentrator1.■胶乳浓缩机line switching concentrator1.■【信】线交换集中（线）器magnetic-tube concentrator1.■磁选机open concentrator1.■敞口式蒸发器pneumatic concentrator1.■风选机rotary concentrator1.■转筒选机sound concentrator1.■聚声器spiral concentrator1.■螺旋选矿机table concentrator1.■摇床telegraph concentrator1.■电报集中器tower concentrator1.■塔式浓缩器concentrator with nozzle discharge1.■有卸料喷嘴的离心浓缩机
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- bookkeeper n.（商人的）记账人，（政府机关等的）簿记员，会计
- bookkeeping n.记账，簿记，管账
- bookland n.（经君主特准）授予私人的公地
- booklearned adj.有书本知识（而无实际经验）的
- booklet n.小册子
- booklore n.书本知识
- bookmaker n.图书编纂者，著作家,[赛马]赌注登记经纪人,出版者
- bookmaking n.著作，编辑
- bookman n.饱学之士,学者,文人,<俗>出版商
- bookmark n.书签 vt.[计算机]给…夹书签
- bookmarker n.书签
- bookmatches （放在可折叠卡纸中的）书夹式火柴
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