underground irrigation的例句大全

The content of soil heavy metals and shallow underground water quality were not greatly influenced by making use of the renovated water for irrigation.

使用再生水对土壤中重金属含量及示范区浅层地下水水质未造成明显影响。

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Technical elements of low pressure underground pipe with micro hole seep irrigation study

低压微孔地埋管灌溉技术要素试验研究

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The seep irrigation underground is a kind of water-saving irrigation technique.

地下渗灌是一种节水效果十分显著的节水灌溉技术。

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Study on the basic seepage laws under different working heads, with zippered plastic pipes as percolation irrigation pipe embedded at different depths underground in the shelf.

采用拉链式塑料管作为渗灌管，在大棚中埋于地下不同深度，在不同工作水头下进行了基本渗流规律的试验研究。

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Through years of efforts, explore soil dressing change layer. underground dark irrigation, fertilizer, biological fixed comprehensive agronomic measures.

通过多年的努力，探索出客土换层、地底暗灌、配方施肥、生物固定等综合农艺措施。

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Underground runoff does not form until the soil reach saturation during spring irrigation; while it forms and increases with soil moisture increasing at the same time during ground irrigation.

喷灌试验要在土壤湿度达饱和以后才会形成地下径流量，而地灌试验则是土壤湿度与地下径流量同时增长。

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With water amount coming from Yellow River reduced, the water flow from Yellow River to Ningxia irrigation area has reduced 30%. Digging wells to combat drought results in the decrease of underground water level in the irrigation area and causes individual lakes dry out.

近年黄河来水减少，宁夏引黄灌区灌溉用水减少了30%，灌区实施抗旱打井工程，造成灌区地下水位下降，个别湖泊出现干涸；

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It is necessary to exploit shallow groundwater including brackish water and semi-saline water for irrigation to combat drought, then vacating the space of aquifer in underground;

春季开采浅层地下水包括微咸水和半咸水抗旱灌溉，腾出地下含水层空间；

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In rainy days, the system keeps as much water as possible for irrigation, and the surplus water is drained out through deep drainage wells when stream forms in the underground drain.

下雨时，该系统保持尽可能多的水供灌溉用，当地下排水沟形成径流时，雨洪经各渗井流入深埋排水竖井，流出团城。

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standard practice for underground installation of thermoplastic pressure piping irrigation systems

热塑压力管道灌溉系统的地下装置

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practice for underground installation of thermoplastic pressure piping irrigation systems

热塑压力管道灌溉系统的地下装置实施规程

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Elsewhere rainfall ranges from modest to abundant, and rivers and underground water permit extensive irrigation.

其他地区的降雨量有的适中,有的充足, 河流和地下水源可用作大面积的灌溉.

英汉非文学 - 政府文件

Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.

在许多国家，成百上千万灌溉用井正将地下水源源不断地抽出地表，其速度超过了雨水回灌的速度。

四级真题- 2016年 6月 2卷 信息匹配