Plastics freed us from the confines of the natural world, from the material constraints and limited supplies that had long bounded hu man activity.

塑料使我们从自然的限制中得到解放，从长期限制人类的活动的材料限制和有限的供应中得到解放。

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The material resources ranged from basics such as paper, pencils, and heat to child-friendly furnishings, computers, Musical Instruments and art supplies.

物质资源包括许多基本的东西，譬如孩子友好型的纸张、铅笔和暖气，电脑，音乐设备和艺术物资。

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WHO is also providing technical and material support to the Ministry of Health to strengthen epidemiological and laboratory surveillance, including provision of laboratory confirmation supplies.

世卫组织也在向卫生部提供技术和物资支持以加强流行病学和实验室监测，包括提供实验室确诊物资。

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They have a material that supplies electrons and a power source that lifts the energy level of those electrons.

VOA: special.2010.09.01

Not surprisingly, among the least profitable categories were two directly tied to the still-lagging real estate market: stores selling lawn and garden equipment and supplies, and building material and supplies dealers.

FORBES: Which retailer type is most/least profitable?

An analysis of financial statements from privately held building material and supplies dealers (NAICS 4441) shows that sales are rebounding a little after three back-to-back years of declines between 2007 and 2009.

FORBES: Connect

After experiencing negative adjusted net profit margins in 2009, privately owned building-material and supplies dealers analyzed by Sageworks saw margins return to the black in 2010 and increase to between 2 and 3 percent in 2011.

FORBES: Connect