Fly ash can meliorate IIobviously the transient zone of interface of the cement paste and aggregate.

粉煤灰对混凝土界面区这个薄弱环节有明显的改善作用。

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The result of microstructures analysis show: there are melted zone , transient zone and heat affected zone in the laser melted layer.

对重熔区显微组织进行了研究，研究表明：激光重熔区分为熔凝区、过渡区及热影响区；

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In time domain on the near zone of vertical magnetic source, the transient field form is decided by fractional power of the angular frequencies for field source.

在时域中，磁源近区瞬变场的时间特性取决于场源所含低频谱的分数幂。

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