词组、短语、俚语及习惯用语• proportional action coefficient
比例作用系数。• proportional allotment
按比例分配。• proportional amplifier
比例放大器。• proportional analogy
比例类推。• proportional band
比例区,比例带,比例尺范围。• proportional compasses
比例规。• proportional component
比例环节。• proportional controller
比例控制器［调节器］。• proportional controller factor
比例控制系数。• proportional countertube
正比计数管。
proportional representation
proportional-representation的词性：
n.Abbr. PR（名词）缩写 PR
1. Representation of all parties in a legislature in proportion to their popular vote.
比例代表制：各政党按照其所得票数在总票数中的比例获得议员席位的一种选举制度
