The principle and design of valve upstream hotplate for preventing excessive flow leakage, and the application of the valve series products are discussed.

论述了防超流量泄漏灶前阀的原理、阀门的设计及防超流量泄漏灶前阀系列产品的应用。

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Upstream downstream finished products of the factory production of raw materials.

上游工厂的产品成为下游成品生产的原材料。

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The derivative products meet the demand of advertisements, television media, the upstream providers and star adherents.

衍生产品来源于广告、电视传媒、产业供给主体和追星族的需求。

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Smaller crews of more highly trained workers who can switch jobs with ease, as the research engineers upstream of them dream up new ways to manufacture products using fewer raw materials and less labor.

FORBES: GE Keeps Manufacturing Jobs In US -- For Highly Skilled

Once this first step is complete, those with conflict minerals in their products must carry out a reasonable country of origin assessment of their upstream supply chains, another significant undertaking.

FORBES: Conflict Minerals Rule Imposes Big Burdens On Manufacturers

Representatives of large, sophisticated companies that have been actively working to implement the expected requirements spoke eloquently at an October 2011 SEC Roundtable discussion of the complexity of their supply chains and the difficulty in obtaining solid information from their upstream suppliers on the origins of common, commodity metals like tin, tantalum, tungsten and gold in purchased products and components.

FORBES: Conflict Minerals Rule Imposes Big Burdens On Manufacturers