opening for drainage的意思|示意
美 / /
英 / /
排水巷道
opening for drainage的网络常见释义
排水巷道 ... opening driving 开拓掘进 opening for drainage 排水巷道 opening of mine 矿体开发 ...
opening for drainage相关例句
Two structural forms can change under pressure to realize a water supply and drainage function of automatic quantify for a single opening.
两种结构形式均可依靠压力的变化，实现单口自动定量给排水功能。