快好知 kuaihz


irrigation造句
(151) How many man - days will be needed to construct this irrigation canal? (152) Bought prior to the use of spray irrigation to re - tighten the screws all parts. (153) There is abundant selling working experience, with making the ability of the irrigation ditch of guest's customer alone. (154) The arable land not suitable for farming, irrigation, and drainage. (155) In India's Punjab , thousands of irrigation wells were dug between 1967 and 1972. (156) Irrigation is needed to make crops grow in dry regions. (157) Type of irrigation system and its susceptibility to plugging or other problems. (158) But the desalinization through irrigation to improve saline and alkaline land would consume a great amount of water, 1.6 times as much as through biological methods.