剧情简介

【安博电竞app安卓】

  事(shì )实证明,该(gāi )方(fāng )案(àn )调整后,渠线(xiàn )长度(dù )缩(suō )减,灌(guàn )溉面积增大,灌溉流(liú )速增(zēng )加,还节约投资113万(wàn )元。较原设(shè )计U型(xíng )方案,输水长度缩(suō )短6.75公(gōng )里,灌溉(gài )放水(shuǐ )时间也减(jiǎn )少(shǎo )2.54个小(xiǎo )时(shí )。

猜你喜欢

Copyright © 2008-2018