Technology has enriched journalism by expanding the means to deliver it and the raw material on which it is based.

科技通过不断扩展原始素材传播的渠道而丰富了新闻的报道手段。

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That surge could cause the sun to blow even more material into space, adding to its colorful, expanding shell of gas, which astronomers call a planetary nebula.

能量的激增可能会使太阳把更多的物质喷向太空，送入色彩斑斓的、正在膨胀的气体外围之中。天文学家们将这种膨胀的气团称为行星状星云。

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Such stars eventually blow off the material of their outer layers, which creates an expanding shell of gas called a planetary nebula.

这样的恒星最终炸开了它们的外层物质，形成了向外扩展的气体盔甲，名为行星状星云。

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It gets the majority of its revenue in the U.S., where the use of quartz as a counter material is relatively new but expanding, trailing more common materials like granite.

WSJ: Waiting in the Wings, 5 IPOs

As Blue Note's business began to grow, he and Wolff realized that they had to have a regular turnover of new material if the label was going to keep its place in the newly expanding world of jazz microgroove records.

NPR: 'Blue Note Records, The Biography'