剧情简介

【酷游ku官网登录页】

  事实(shí )证明,该方案调整(zhěng )后,渠线长(zhǎng )度缩减(jiǎn ),灌溉面积增(zēng )大,灌(guàn )溉(gài )流速(sù )增加,还节(jiē )约投(tóu )资113万元(yuán )。较原设(shè )计U型方案,输(shū )水长度(dù )缩短(duǎn )6.75公(gōng )里,灌溉放水(shuǐ )时(shí )间(jiān )也减(jiǎn )少2.54个小(xiǎo )时。

猜你喜欢

Copyright © 2008-2018