Techniques in applying water tofarmland and de veloping counterproposals for increasing water use efficiency 提高水分利用效率的田間施水技術與發(fā)展對策
( 2 ) in case of specified volume of applied water , the shape of wetted soil volume is influenced by discharge rate ( 2 )在灌水量一定的情況下,滴頭流量對濕潤體的形狀有明顯的影響。
Deep pipe irrigation can be especially useful on slopes and in crusty soils where surface applied water will run off 描述:深度管道灌溉在斜坡和硬質土壤環(huán)境中非常適用,因為在那些地方地表灌溉浪費水資源。
Three kinds of method is applied water spray with pump , water curtain without pump , and dry adsorption to tackle waste gas 并對有泵水霧、無泵水幕、干式吸附三種治理工藝方法、吸收裝置結構及運行特點進行分析對比。
Many of the researches carried out have concentrated on how to apply water and nutrients effectively to achieve the goal of high yield , good quality and high efficiency 如何有效地對二者進行調控,達到高產、優(yōu)質和高效的生產目的,國內外已進行了大量的研究。
By accomplishing environment effect evaluation and economy assessment analysis , the writer shows the economic reasonableness of applying water - saving reform engineering to the irrigation area 完成了環(huán)境影響評價及經濟評價分析,說明灌區(qū)實施節(jié)水改造工程在經濟上是合理的。
The engine applies water - cooling system , so the working circumstance is improved the combustion ratio , power and torque . the fuel consumption and the exhausting gas are reduced at the same time 采用水冷技術,改善了熱機部分的工作環(huán)境,提高燃燒效率,增大了功率和扭矩,同時油耗和排放降低。
Considers that applying water source heat pump can reduce initial investment , operating cost and atmospheric pollution effects when recycling cooling - water from power plant is used 認為在具備利用電廠循環(huán)冷卻水條件的場所,采用水源熱泵為建筑供暖可以減少初投資、運行費用以及對城市的污染影響。
To touch pencil sketches and drawings up , either the western watercolour or the special " ju - school technique " is used . coloured pencil drawings made in the latter way have the applied chinese pigments " washed " by water , or in the other way round , by applying water before pigments 其中鉛筆淡彩是在鉛筆速寫、素描之上,或以西方的水彩畫法施以淡薄的顏色,或以"居派"獨特的"撞水撞粉法"賦彩。
This research was conducted to : ( 1 ) understand the characteristic and pattern of trickle source infiltration , ( 2 ) study mulched crop evapotraspiration for cotton and corn in a arid climate sandy loam soils . according to the researches of the dissertation , the main results are as follows : ( 1 ) the shape of wetted soil volume is influenced by soil texture , discharge rate and the total volume of applied water in case of trickle source infiltration 本文以粘壤土為研究對象,對微源入滲特性規(guī)律進行了系統的室內試驗研究,并且對膜下滴灌大田作物棉花和玉米的需水規(guī)律進行了野外試驗,得到了以下幾點結論: ( 1 )地表微源入滲土壤濕潤體的形狀受到土壤質地、供水強度和灌水時間的影響,一般為半個橢球體。