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In this paper, such control measures as farming, terrace, and hedgerows have been studied.

文章着重研究了耕作措施、梯田措施、植物篱措施在坡耕地不同坡度上的蓄水保土效益。

On the base of this unified land acquisition, the government turns to be the sole land supplier in the primary land market, which can be described as "water comes from one channel, gets into one pool and goes out of one outlet".

政府主导型土地储备模式要求所有进入城市流转的土地都必须由政府强制统一收购,在此基础上,政府成为土地一级市场上唯一的供应者,真正实现&一个渠道进水,一个池子蓄水,一个口子供水&。

After 10 years of construction, the project has achieved its second-phase targets, storing water on the left-bank dam, with successful trial double-lane navigation through five stages of ship locks, and with the first generating sets starting operation and being connected to the grid.

历经十年建设,三峡工程实现了左岸大坝下闸蓄水、双线五级船闸试通航和首批机组发电并网的二期工程目标,这是三峡工程建设的一个重要里程碑。

The water content and soil nutrient concentration are the highest near the 155-meter height of water level. The vertical distribution of vegetation spatial pattern demonstrates four belts, which respectively include Floodplain annual herb belt, Xanthium sibiricum belt, Paspalum paspaeoides belt and riparian Heights High-grass plants belt.

3受三峡库区蓄水水位变动影响下的的研究区域,表征河流生境变化的水分格局、土壤养分、植被分布均表现为明显的梯度变化,水分、土壤养分在155m附近为最高;植被空间格局呈四个带垂直分布,即从低海拔到高海拔依次为河漫滩一年生草本植物带、苍耳带、双穗雀稗带和河岸高地高草植物带。

The result shows that the erosion presents as incision when the riverbed is relative narrow and deep; To the low-water branching reach with strong boundary conditions where the riverbed is wide and shallow, the scour and deposit variation characteristics mainly presents as erosion and deposition adjustment of river island, height deviation of thalweg in the inlets and the adjustment of split ratio after impoundment To the low-water branching reach where the riverbed is wide and shallow and the lateral boundary conditions are weak, the scour and deposit variation characteristics is not restricted to the adjustment of split ratio, and the pattern of the braided reach may even be changed.

结果表明:当河段相对窄深时,河段冲刷主要为下切;当河段为相对宽浅的低水分汊河段且河岸约束较强时,蓄水以后的冲淤变化主要体现为江心洲滩的冲淤调整、汊道深泓高程差的冲淤调整,并引起主支汊分流比的调整;当河段为较为宽浅的低水分汊河段且河岸约束相对较弱时,则冲刷调整不仅限于分流比的调整,甚至会导致大的分汊格局的调整。

Water storage pit irrigation ; unsteady infiltration head ; soil moisture movement characteristic ; 3-D infiltration numerical model of layer homogenous soil ; topsoil porosity variance

国家自然科学基金;山西省自然科学基金蓄水坑灌;非恒定入渗水头;土壤水分运动特性;层状均质土三维入渗模型;表层土壤孔隙度变化

The water storage and discharge technique of ceramisite layer could also be applied in field of golf lawn, playground, and pleasure ground and so on.

陶粒层状蓄水型排水技术也能够应用在高尔夫果岭排水,运动场的排水,景观儿童游乐场等领域。

It was a stationed company's place for cultivation in 1950's, which preserves relics of Diwozi groups, pounded-wall kitchens, ponds and simple cultivating tools and living things such as wooden wheel oxcarts, wooden ploughs, rock grinds.

军垦创业连原是五十年代垦荒连队的驻地,保存着当年垦荒时的地窝子群、干打垒伙房、蓄水涝坝等军垦遗迹,还有木轮牛车、木犁、石磨等垦荒工具和生活用品。

Fresh rainfall may prove more helpful to winter-sown crops such as wheat, which rely heavily on water from reservoirs, whose levels remain far below average.

新增加的雨水对于冬天那些主要依靠水库(其水量已经严重低于平均蓄水线)蓄水量的庄稼,如小麦来说,或许会有很大帮助。

The time from saturated soil moisture content to wilting percentage of Aeolian sandy soil, Loessial soil and Lou soil was extended by 244.72%,251.11% and 36.31% respectively when Sodium Polyacrylate was applied at the suggested dosage.

风砂土、黄绵土与塿土的蒸发强度随着高分子化合物聚丙烯酸钠用量增加而降低,聚丙烯酸钠用量为0.5%时,砂土、黄绵土与塿土10天累积蒸发量分别较对照降低了59.89%、48.92%与55.81%;综合考虑对土壤蓄水与蒸发能力的影响,聚丙烯酸钠用量为风砂土、黄绵土应控制在0.08%~0.2%,塿土中用量必须严格控制在0.2%左右;在上述用量条件下,风砂土、黄绵土、塿土从饱和含水量蒸发失水至凋萎含水量的时间分别被延长了244.72%、251.11%与36.31%左右。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。