| 例句 |
penstocknoun a long hollow cylinder for carrying a substance (as a liquid or gas)a penstock carried water for the waterwheel channel, conduit, duct, leader, line, pipe, trough, tube drain, drainpipe, funnel, hydrant, main, smokestack, spout, standpipe, stovepipe, tile, waste pipe, waterspoutpipage(or pipeage), pipeline, piping in 1543 |