The control section of the spillway in the reservoir generally is the spilling weir.But the spill-weir with the sluice culvert is infrequent in the hydraulic work.是什么意思_The control section of the spillway in the reservoir generally is the spilling weir.But the spill-weir with the sluice culvert is infrequent in the hydraulic work.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句