If cold energy of the imported LNG is taken full use of and more light hydrocarbons are separated from the wet gas, the downstreamchain cost will be surely reduced to a much higher degree.
充分利用LNG的冷能和尽可能分离出湿气中所含的轻烃，可使下游环节成本进一步降低。
2
Each service within the chain is dependent on the downstream services—that is, a service can't proceed until it receives a response from the downstream services that are invoked.
链中的每个服务都依赖于下游服务——即在接收到所调用的下游服务发回的响应前，服务将不会继续执行。
3
In a supply chain, materials flow from upstream to downstream.