1)building basin,造船渠2)wet basin,船渠3)wet dock (or basin),[闸式]船渠4)lock approach channel,船闸引渠5)the channel upgrade,渠道改造6)the head of canal reconstruction,渠首改造
用法例句
In order to substitute experiential arithmetic which needs a lot of calculation and repeated work, this paper attempts to make use of immune genetic algorithm to optimize trapezoidal channel section, and applies this method to the channel upgrade of the second irrigation district for the Yanghe River in Hebei.