tapered parapet gutter锥形: taper; cone; cone-shape天沟: gutter鞍形天沟: saddleback gutter半圆形天沟: semicircular gutter槽形天沟: box gutter; box iron; trough gutter下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:锥形天沟，即可在微信中查询翻译
