His starting material, as he describes in a paper in Nature Nanotechnology, is made of closely packed polystyrene spheres about a millionth of a metre in diameter.

Braun博士最开始采用的材料正是他在自然纳米技术杂志所描述的那样，是由直径为百万分之一米紧密排列的聚苯乙烯小球组成。

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The Kyoto University researchers hope to be able to repeat their success using slivers of skin as starting material, allowing men to father children that are genetically their own.

日本京都大学的研究者们希望可以复制他们的成功经验，以皮肤组织为原始材料，让男性拥有自己的亲生孩子。

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When you're developing a new chemical process or API process you should be discussing your choice of API starting material with the review division.

当你开发一条新的化学工艺或是API生产工艺的时候，你最好和药政审核部门讨论你的起始物料选择。

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I want to look at the energy starting from real material.

我们从身边真实的材料说起这些能量。

麻省理工公开课 - 固态化学导论课程节选

Switchgrass contains cellulose, the starting material that, with enough heat and the right enzymes and chemicals, can be made into ethanol fuel.

NPR: Study Boosts Switchgrass as New Alternative Fuel

In a research note today, Reitzes notes that his Japan-based colleague Masahiro Nakanomyo contends that Canon and Fuji Xerox could be facing shortages of toner material starting next quarter.

FORBES: Laser Printer Makers Seeing Parts, Toner Shortages Due To Quake

Uranium 235 is the key material in starting a nuclear reaction, and its acquisition is the main problem facing states which want to go nuclear.

BBC: Nuclear threat casts global shadow