After determining the control equation and defined problems for infiltration, redistribution and evaporation, implicit finite difference method was used for ponded infiltration, semi-infinite soil redistribution and semi-infinite evaporation. The calculated results agreed well with measured data.

9在確定了入滲最新2020中文字幕永久人人视频、再分布及蒸發(fā)的控制方程及定解問題基礎(chǔ)上，采用隱式差分格式對(duì)垂直一維積水入滲、半無限土體再分布及半無限土體蒸發(fā)進(jìn)行了數(shù)值模擬99久久婷婷国产综合精品青，與計(jì)算結(jié)果對(duì)比表明，計(jì)算值與實(shí)測(cè)值比較符合aⅴ色图。

In order to study the finger flow phenomenon during ponded infiltration process in layered soil, an experimental study was carried out to observe the occurrence, mechanism and environment of finger flow in six soil columns which have different grain sized sands overlain by loess soil.

根據(jù)層狀結(jié)構(gòu)土壤在積水入滲過程中存在發(fā)生指流的現(xiàn)象国产一级A片在线观看免费，該文針對(duì)黃土地區(qū)&壚蓋砂&的土壤條件，在室內(nèi)以西安黃土為主體色一级免费视频，對(duì)6種不同粒徑的砂質(zhì)雙層結(jié)構(gòu)土壤進(jìn)行積水入滲試驗(yàn)欧美精品黄色大片一区二区三区，以觀測(cè)研究發(fā)生指流的現(xiàn)象、機(jī)理與條件在线AⅤ视频播放。

The rate of wetting front advance and infiltration rate under certain ponded infiltration was significantly reduced by Sodium Polyacrylate , and as a result effectively reduced water in a sandy soil leaking to a deeper layer under the plough layer.

砂土的飽和導(dǎo)水率隨著高分子化合物聚丙烯酸鈉用量增加而降低特级黄色视频黄色网站免费的，在恒定水頭入滲條件下，聚丙烯酸鈉降低了水分向深層運(yùn)移的速度黄色网站无码在线免费播放，同時(shí)降低了砂土的入滲速率色狼www.，可以有效降低砂土水分的深層滲漏。

The lake is ponded by lava a long time ago.

這條湖是很久以前熔巖堵塞河道形成的美国无码精品。

The lake is ponded by lava a long time ago.

這條湖是很久以前熔巖堵塞''黄页免费视频播放在线播放。

ponded stream：阻塞河

ponded calcareous turbidite 下沉深水鈣質(zhì)濁積巖 | ponded stream 阻塞河 | ponderabld 可衡量的;可估量的

ponded stream：攔阻河,阻塞河

poised stream 均衡河,穩(wěn)定河流,平衡河流 | ponded stream 攔阻河,阻塞河 | rain-fed stream 雨水補(bǔ)給河流

ponded basin：阻塞盆地

pondage 蓄水量 | ponded basin 阻塞盆地 | ponded calcareous turbidite 下沉深水鈣質(zhì)濁積巖

ponded basin：滯流盆地,滯水盆地

pondage type power station ==> 調(diào)整池式発電所 | ponded basin ==> 滯流盆地,滯水盆地 | ponded plain ==> 堵塞平原

ponded water：積水

pond 池 | ponded water 積水 | ponor 落水洞