单词	fastener group
释义	fastener group 钉群
随便看	series of permanent artificial standards series of poems series of positive term series of positive terms series of potential series of potentials series of powers series of precipitation series of pressed-on solid tyres series of prime numbers series of product platforms series of products series of random variables series of receipts series of resales series of ring dyke series of rocks series of scales Series of shears series of ship models series of similar components series of similar experiments series of solid solution series of spectral line series of spectral lines