Laddershaped weir是什么意思

中文翻译梯形堰

网络释义

1)Laddershaped weir,梯形堰2)cipoletti weir,梯形量水堰3)trapezoidal thin-wall weir,梯形薄壁量水堰4)trapezoidal weir,梯形槽口量水堰5)terrace barrier,梯田地堰6)step weir,阶梯式堰

Flow measurement improvement of cipoletti weir in irrigation areas;

灌区梯形量水堰测流改进研究

Benefits of eight types of plant compound on the terrace barrier in the rocky mountain area were investigated.

对青石山区梯田地堰 8种植物配置模式的效益进行了调查 ,结果表明 :各参试模式的纯收入与年投资收益率均高于对照 ;不同的配置模式纯收益不同 ,其中以香椿、核桃投资收益率最高 ;在主栽树种密度相同的情况下 ,立体栽植效益好于单一树种 ;前期适度密植可提高单位地堰效