键角: bond angle; valence angle与: take part in; participate in同一: same; identical原子: atom连接: connect; fit together; link; ...的: 4次方是 The fourth power of 2 i ...两: two键: key之间: between; among角度: angle; the degree of angle电唱盘中则指针臂同唱片表面之间的角度障板: baffle人与人之间的角色: interpersonal role用于管子连接的开孔: openings for pipe connections两个基因之间的: spacer sequences一个连接的斑点;同一连接泡: one co ected blob双键连接的碳原子: doubly linked carbon概念之间的连接: linking ideas视角:视觉目标的两端在瞳孔形成的角度。: visualangle两个保护栓之间的攀登踟: pitch两个舱口之间的空间: no man's land两个球员之间的来回击球。: the exchange of shots between players. a rally starts when the receiver returns serve and ends when the point is won在两个路口之间的过路处: mid-block crossing一原子的: monoatomic一原子氧: antozone肋骨 或者指两桥之间板底的两个边: rails