当工作电流超过最大稳定电流IZmaX时稳压二极管将不起稳压作用，但并不损坏。
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已知某框架抗震设防等级为三级，当框架柱截面长边尺寸为700mm， 柱净高Hn=3600mm 时， 柱在楼面梁底部位的箍筋加密区长度不小于（)。
Children today don’t have much idea what jobs their parents do.
Comma can be on both sides of words that interrupt the flow of thought in a sentence.
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