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。
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。
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。
In two cases that upstream and downstream firms have the decision power of intermediate product prices in a two-level supply chain, the dynamic pricing mechanism of intermediate products is studied.
在两级供应链上下游企业分别具有中间产品价格决定权的情况下，研究了中间产品动态定价机理。
The products of the upstream reaction zone are conducted to a downstream reaction zone and combined with fresh feed in the downstream reaction zone.
所述上游反应区的产物引入下游反应区并在所述下游反应区与新进料混合。
The derivative products meet the demand of advertisements, television media, the upstream providers and star...
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。
The derivative products meet the demand of advertisements, television media, the upstream providers and star...
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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