小型水库除险加固过程中存在的问题和处理方法探讨 - 中国月期刊网 关键词】大坝;溢洪道;放水洞(闸)管;灌溉渠道 [gap=260]Key Words] dam; spillway; water holes (gates) tube; irrigation channels
基于42个网页-相关网页
Buckets rise on a long chain from the well, and the water is tipped out into irrigation channels.
一长串的水桶从井下升上来,把水倒入灌溉渠中。
Buckets rise on a long chain from the well, and the water is tipped out into irrigation channels.
吊桶随着长长的链条升出井口,所盛的水被倾入灌溉渠内。
Suddenly ploughed tracts and irrigation channels appeared, and the glisten of flooded rice-fields;
刹那间,犁耕田和灌溉渠出现了,水稻田也在闪闪发亮;
应用推荐