In the peak of the dot.com bubble, brick and mortar retail was one of those industries the internet was going to kill—and quickly.

在互联网泡沫时期的顶峰，实体零售业是互联网即将迅速扼杀的行业之一。

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In the heyday of the dot.com bubble, brick and mortar retail was one of those industries the internet was going to kill-and quickly.

在互联网泡沫最严重的时期，实体零售是互联网很快就要毁灭的行业之一。

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Chemical bubbling method is adding bubbling agent into raw material, making the agent reacting with the materials to produce gas and therefore forming small bubble in the brick.

化学发泡法制备隔热耐火砖是将发泡剂直接拌入原料中，使其发生化学反应产生气体，在砖内形成小气泡。

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