sediment base gate (bottom outlet)
孔口拦沙坝
sediment storage dam with hole【水利】
暂无补充释义。
sediment storage dam with hole【水利】
暂无补充释义。
sediment base gate (bottom outlet)
sediment
marine sediment
non-salty processed urine sediment
urine sediment
sediment
hemipelagic sediment
lake sediment