查询词典 irrigation engineering
- 与 irrigation engineering 相关的网络例句 [注:此内容来源于网络,仅供参考]
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A new type of light weight and small size machine with sprinkling irrigation and hose irrigation was introduced. The machine's set of remotion and pressure water are provided by a capstan car, and sprinkling irrigation by a sprinkler car.
介绍了一种新型喷灌和软管灌溉两用轻小机组的结构和工作原理,该新型灌溉机组由绞盘车提供行走动力和压力水源,通过喷水车进行喷洒灌溉。
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Under different irrigation methods, such as small-pipe-flow irrigation and flooding irrigation, a study was conducted on Robinia pseudocacia L.
在小管出流与大水漫灌不同灌溉方式下,研究刺槐Robinia pseudocaciaL。
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This paper studied the effects of drip-and furrow irrigation and of different irrigation amount and period under drip irrigation on the occurrence of cotton spider mite Tetranychus turkestani in Xinjiang cotton field.
研究了不同灌溉方式,以及在滴灌条件下,不同灌水量和不同灌水时期处理下,新疆棉花主要害螨-土耳其斯坦叶螨的发生动态。
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The most common water-conserving irrigation systems are some form5 of drip irrigation (also called micro-irrigation).
最常使用的节水灌溉系统是某种 5 水滴灌溉系统也称作"微灌溉"。
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objectiveto provide the scientific foundation for the construction of gap cultivation bases of abrus mollis hance by evaluating the pollution status of soil and irrigation water in abrus mollis hance cultivation base.methodsthe environment quality was appraised by the nemerow pollution index method.resultsthe quality of soil and irrigation water was good, falling in the categories of "clean".conclusionthe quality of soil and irrigation water in abrus mollis hance cultivation base accords with the requirement of gap of chinese medicinal materials.
目的对鸡骨草种植基地土壤、灌溉水污染现状进行评价,旨在为鸡骨草规范化种植基地建设提供科学依据。方法土壤及灌溉水污染现状运用单项污染指数法和内梅罗综合污染指数法进行评价。结果种植基地土壤和灌溉水污染等级均属于&清洁&一级。结论鸡骨草种植基地的土壤和灌溉水质量完全符合《中药材生产质量管理规范》的相关要求。
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The research result showed that(1) The reclaimed water used didn't influence the sensory quality of a given turf grass tested;under irrigation of reclaimed water,Festuca arundinacea are the best,followed by Buchloe dactyloides and Zoysia japonica;(2) The influence of different types of irrigation water on growth characters of turfgrass is species-dependence;(3) Irrigation by reclaimed water and fresh+reclaimed water increases Na~+,CEC,and total porosity of the turf soil in comparison to fresh water,and improves soil quality.
结果表明:本研究使用的再生水对所供测试绿化草种的颜色、覆盖度、质地和均匀性无不良影响,再生水灌溉条件下,高羊茅表现出了最强的综合耐污能力,其次是结缕草和野牛草。灌溉水类型对于草坪草的生长指标的影响具有种的特异性。再生水灌溉和&清水+再生水&交替灌溉提高了土壤的阳离子交换量和总孔隙度,有利于土壤物理性状的改善。
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A5B4, holard 25%, irrigation 90m~3/hm~2) was best in single plant yield and 15(A3B5,holard 15%,irrigation 120m~3/hm~2) was excellent not only in grains per corncob but also in hundred-grain weight at different holard and different irrigation.
不同土壤含水量及不同坐水量处理时,平均穗粒数和百粒重均以处理15(A3B5,含水量15%,坐水120m~3/hm~2)为最优,单株产量以处理24(A5B4,含水量25%,坐水90m~3/hm~2)为最佳。
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The result of variance of analysis showed that the germination capacity of treatment in 15,18,19,23,24,were all higher than 85 percent.15 treatment was best from single direction of germination capacity and 18 and 23 were best both from germination capacity and sparing irrigation ,namely when holard was 20%-25%,irrigation was 60m~3/hm~2.(2) Pn showed single peak curve at different holard and irrigation.
不同土壤含水量及不同坐水量处理时,光合速率在整个生育时期呈单峰曲线变化,不同土壤含水量处理均在抽雄期达到最大值,土壤含水量较高时,光合速率较高,变化迅速,土壤含水量较低时,光合速率也较低,变化缓慢。
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In this paper,the test results of a few high-yield irrigation models for rice planting in black grass soil of cold region are presented,they show that the optimum irrigation model is the dry-wet intermitted irrigation method.
对寒地草甸黑土稻作的几种高产灌溉方式进行了试验研究,结果表明:干湿交替不建水层的间歇过水灌溉方式为最佳。
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By analyzing soil quality of 4 kinds of land use types in Kalamay agriculture development area according to principal component analysis, we draw the conclusions: nature shrub tree land is affected little by mankind, a great deal of organic matter return to soil every year, and root system can improve soil physical quality, can absorb salt from soil, so the soil quality of nature shrub tree land is the best; the soil quality of farmland is better than the soil quality of manpower Tamarix Bulrush land, which may be reasoned that man make for soil quality by irrigation to exclude salt and fertilizing organic muck in the earlier oasis digging up period. Soil physical qualities of tree land get harden and worsen for flooding irrigation, furthermore climate in Kalamay is dry and rainless , the other irrigation is very long time after the former one, so soil get harden severity and result soil physical quality get worse and worse.
利用主成分分析法分析新疆克拉玛依农业开发区四种土地利用方式下的土壤质量,得出:天然灌木林地,受人为影响较小,每年有大量有机物质返还土壤,且天然灌木的根系可以很好的改良土壤的物理性质,同时所选天然灌木林灌木多是耐盐碱并且本身又具有吸收积累来自土壤的盐分,土壤质量最好;农田受到的人为影响最大,但农田综合得分却好于人工柽柳芦苇地综合得分,这可能是由于在开垦初期的绿洲农田,受到了人们灌水压盐及增施各种有机无机肥料等有利于土壤质量提高的措施所致;乔木林地,由于人们用大水漫灌的方式灌溉,致使林地土壤变得板结,土壤物理性质下降,加上克拉玛依地区气候干燥少雨,一次灌溉后较长时间后才有下一次灌溉,致使土壤理化性质恶化,土壤质量不高。
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- 推荐网络例句
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Yet, Edith says, there was always money in the bank.
但是Edith说,她的银行户口里面总是有钱。
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We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.
我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。
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However, the trends of both improvement and degradation in eco-environment were coexist, and displayed their spatial hete...
与城市用地变化有关的土地利用类型也多分布在金昌、嘉峪关、张掖、武威和酒泉 5个地级市所在地区,表明这些区域的城市化过程相对活跃;3城市用地变化对生态环境影响的空间规律表现为:使生态环境原本较差的地区生态环境质量有所增加,而使生态环境质量较好的地区生态环境质量降低;4城镇用地与工矿用地对区域生态环境的影响表现出与城市用地总体基本一致的规律,但农村居民点则对生态环境正、负两方面影响都较为显著;5 城市用地扩展对区域生态环境的影响也体现出与城市用地总体类似的区域分异特征;而城市用地收缩的影响则与此趋势相反。