剧情简介

【BET360官网】

  事实(shí )证明,该方案(àn )调(diào )整(zhěng )后,渠(qú )线(xiàn )长度缩(suō )减,灌溉(gài )面积增大(dà ),灌溉流速增(zēng )加,还节约投资113万元。较(jiào )原(yuán )设计U型方(fāng )案,输水(shuǐ )长(zhǎng )度(dù )缩(suō )短(duǎn )6.75公里,灌溉放水时(shí )间(jiān )也减少2.54个小(xiǎo )时(shí )。

猜你喜欢

Copyright © 2008-2018