Propagation can also happen in different directions: horizontal or downstream.
传播还可能发生在不同的方向上：水平的或者下游。
Other firms are looking beyond directly blocking VEGF, and are using RNA interference to target other molecules in its signalling pathway, either upstream or downstream.
其它公司不仅仅在考虑直接阻断VEGF，而是尝试通过RNA干扰来瞄准其信号路径中的其它分子，上行或者下行均可。
A device incorporating an orifice that is used to control fluid flow rate or downstream system pressure.
包括一个喷嘴的装置。它用于控制流体的流量或下游系统的压力。
Fluid reservoirs (100) can be located either upstream or downstream of a filtering system to provide chilled filtered liquid.
流体贮存器(100)可以位于过滤系统的上游或下游，以提供过滤的冷却水。
They may be installed either upstream or downstream of a regulator or meter, and may be controlled directly or from a remote pressure source by means of an external control line.
它们可安装于减压阀或计量表上下游，并可直接控制或以外接远端压力源控制线做远端控制。
Some expand by vertical integration, owning and integrating a greater length of the value-creation-and-delivery pipeline-for example, buying upstream suppliers or downstream distributors.
一种是纵向整合，就是垂直拓展上下游渠道的长度，比如，收购上游供应商或是下游经销商。
Traditionally, such a circuit was provisioned through the use of two copper pairs, one for transmission ( forward path , or upstream path ) and one for reception ( reverse path , or downstream path );
传统上，这种电路通过使用两个铜电缆对提供，一个用于发送（前向路径或上游路径）、一个用于接收（反向路径或下游路径）。
Traditionally, such a circuit was provisioned through the use of two copper pairs, one for transmission ( forward path , or upstream path ) and one for reception ( reverse path , or downstream path );
传统上，这种电路通过使用两个铜电缆对提供，一个用于发送（前向路径或上游路径）、一个用于接收（反向路径或下游路径）。
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