查询词典 irrigation canal

The modern control theory is applied to develop the design principle and method for automatic control of irrigation canal.

本文用现代控制理论研究渠道自动控制的设计理论和方法。

There the irrigation canal links up with the reservoir which is very important to the villagers.

这条灌溉渠道在那儿与水库连接起来，水库对村民们很重要。

The paper proposes a method of the piecewise water distribution of main canal according to the characteristic of irrigation canal in mountainous area.

针对山区灌溉渠道的特点，提出了干渠分段配水的方法，分别对来水充足和来水不足条件下的干渠配水进行了理论分析和实例计算，取得满意成果

In a reservoir irrigation system, adjustment of water distribution in time is realized by reservoir operation, and operation of irrigation canal systems adjusts water distribution in space.

对于水库灌区，调节水量在时间上的分配是通过对水库的调度实现的，田间配水则是水量的空间分配过程。

The water delivery scheduling problems of multilevel optimal irrigation canal system can be solved, which meet the requirement of irrigation management.

2针对多级灌溉渠系配水的问题，基于大系统分解协调的思想，建立了一种解决多级灌溉渠系配水优化编组问题的模型。

The vineyard lies at the base of LongQuan Mountain. Dongfeng canal is its main irrigation canal.

葡萄园地处龙泉山下、东风渠是主要的灌溉渠道。

Var. pyramidalis is not positively correlated with ion concentration in growth environment, the capacity of selective absorption and transport of ions in Populus alba L. var. pyramidali under salt stress in drainage canal is higher than Populus alba L. var. pyramidal is of normal growth in irrigation canal. Under salt stress, the concentration of K(superscript +)、Na(superscript +) of roots and leave of Populus alba L. var. pyramidalis have changed, the concentration of K(superscript +) of roots and leave dropt the concentration of Na(superscript +) of roots markedly increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) have slightly changed, the concentration of Ca(superscript 2+) of roots dropted, the concentration of Mg(superscript 2+) increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) of leave increased.

主要结论为：新疆杨各器官的离子含量与生长环境中的离子浓度不存在正相关趋势；排渠盐胁迫下生长的新疆杨对离子选择吸收和运输的能力高于灌渠正常生长的新疆杨；盐胁迫下，新疆杨根和叶中K、Na的浓度发生了明显的变化，K浓度在根和叶中呈下降趋势，Na浓度在根中明显增加，根和叶中Ca(上标 2+)、Mg(上标 2+)浓度的变化趋势略缓，根中Ca(上标 2+)浓度下降，Mg(上标 2+)浓度增加，叶中Ca(上标 2+)、Mg(上标 2+)浓度有所上升。

Taking Populus alba L. var. pyramidalis in irrigation canal and drainage canal as an object of study, absorption, transport and distribution characters of K(superscript +), Na(superscript +), Ca(superscript 2+), Mg(superscript 2+) in Populus alba L.

论文以灌渠和排渠两种生境上的新疆杨为对象，研究自然生长状况下新疆杨Populus alba L。

In the experi- ment and practice m the zhongwei North Main Canal of the Hetao Irrigation District, a cheap and quick functioned slope protection method of soil and grass mixture for tree planting has been searched for de- sign and construction of irrigation canal and drainage in the desert region.

河套灌区在中卫北干渠进行了试验，在沙漠建渠道，用人工和植物固沙，沙漠区排水沟道的设计则充分考虑水流冲刷，对沟道防坍塌摸索了一条花钱少、见效快的草上植柳护坡办法，并在灌区内植树造林以固沙。

Layout forms of irrigation canal system can be generally classified as three categories: series-wound canal system, equivalent shunt-wound canal system and nonequivalent shunt-wound canal system.

文摘：灌溉渠系的布置形式一般可分为串联渠系、等效并联渠系和非等效并联渠系，对这3种灌溉渠系水利用系数进行了理论研究。

It goes back to what I told you...

现在回到我告诉过你的。。。

With a supporter in Mr Charest and an admirer in Mr Dumont, Mr Harper may be encouraged to call an election himself.

由于在沙雷那边有个支持者，杜蒙那边有个崇拜者，鼓励哈珀为自己举行一次选举。