翻訳　日本語　英語: 放水管

1 discharge, drain, drainpipe, effluence, efflux, escape, flow, flux, fluxion, fountain, leak, leakage, natural spring, outflow, outpouring, run, spring, venting, waste pipe.

2 drain, drainage, drainpipe, waste pipe.

3 drain, drainpipe, gutter, trough, waste pipe.