upstack

词形变化

upstacks 复数 upstacks

释义与例句

n.
  1. 1.

    The upper part of the stack.

    Ground particles are fed up the upstack where they circulate to the downstacks and either pass through outlets on the inner radial surfaces (if they are small enough) or are swept again to the bottom of the upstack by low-pressure inlets […]

词源

From up- + stack.

来源：wiktionary