查询词典 water area

Based on field investigation and historical data analyzing, the characteristics and causes of flood disasters of Qinba Mountain area were discussed in this paper. Take the harnessed Watershed and unharnessed Watershed as comparative study objects, through analzing the two typical watershed land using and rainfall-runoff dynamic data, combinating the in-situ soil infiltration field testing, a rainfall-runoff model of small watershed which was appropriate to Qinba Mountain areas was built based on improving the SCS model. And then the influence of soil and water conservation measures on the flood processes was analysed.

本文通过野外调查与历史调查资料，阐述了秦巴山地区洪水灾害的特点及成因，以治理流域与未治理流域为对比研究对象，通过对两条典型流域的土地利用状况分析，结合土壤入渗原位测试，充分利用降雨、径流动态观测资料，以SCS模型模拟降雨径流为重点，建立适合于秦巴山地区小流域的降雨径流计算模型，分析水土保持措施对于洪水的作用过程。

All water pricing methods have different impacts on efficiency, where the volumetric pricing and tiered pricing can made first best efficiency, and input/output pricing can made second best efficiency while the unit per area pricing has a low efficiency.

水资源作为稀缺资源在分配使用中存在效率与公平性的冲突，为实现有限水资源的可持续利用，就必须在分配过程中进行效率与公平性的协调[1]。

An unobstructed area of land or water.

不设防的疆域或水域

An unobstructed area of land or water.an open city; open to attack.

未设防的城市；面对攻击无防备的。

From the analysis of the historical and measured data, some tendencies of flood in Zhejiang in the global change are predicted: 1low water year will take the upper hand in ten years or more, the global change will make the temporal and spatial changes of flood in Zhejiang more violent, and the flood disasters in coast area more serious.

中文摘要：根据历史和实测资料分析，对于全球变化下浙江近期洪水的运作大势，可得如下几点认识：（1）在未来的十几年之内，浙江省将处在枯水年占优势的阶段，但全球变化将使浙江洪水的时空变化更为剧烈，使沿海地区的洪水灾害更为严重。

The wavelet variance verification also indicates that the first main period of the runoff of mountainous watershed in the Shiyang River Basin is 30years, and 22years and l5years are the second and third period respectively; 3 Then we also compared the total runoff of mountain watershed with climate factors of Wushaoling which station is in the mountain headstream area, such as precipitation and temperature, the data record that the correlation coefficient of annual runoff and precipitation variation over the upper reaches in the Shiyang River Basin is 0.61 ,which indicates precipitation is the main water recharge of the runoff.

石羊河流域出山口年径流的周期变化与乌鞘岭站年降水量和年均气温周期基本上都能在同一周期上下浮动，其中出山口年径流量与乌鞘岭山区年降水量相关系数为0.61，说明地表径流量主要是由山区降水补给；年径流量与山区年均气温变化呈0.28的反相关，说明该流域近50年来出山口径流与山区气温呈反比，即径流量随年均气温上升而减少，相关性暂时不十分明显。

Vetiver grass is the ideal plant of soil and water conservation, which have been found only in large area in Chinese mainland.

香根草又名岩兰草，由于根系庞大，被认为是"世界上具有最长根系的草本植物"[1] 。

The APW in summer is less than 25 mm which is the least limit value of monsoon areas.This means that Xinjiang is not affected by monsoon.The geographic distribution of APW is adverse with that of precipitation,videlicet,higherAPW values corresponding to lower precipitation values.With the effects of westerly winds,the APW mode presents as an uniform change within Xinjiang area and has a stable distribution.It is very different from Xinjiang rainfall mode which changes a lot spatially.As mentioned above,there is no obvious change during 1961～2000,this indicates that APW is not a dominant factor determining precipitation,it is the result of dynamic condition,water vapor convergence and other causes.

APW的地理分布与实际降水量分布相反，其最大区域却为降水量最小区，受西风带影响，新疆APW模态主要表现全疆一致变化，分布稳定，与降水模态分布差异性大有显著不同，且近40年来无显著变化趋势，表明决定新疆降水差异的根本原因不在于水汽的多少，而是由降水产生的动力条件、水汽辐合和其它因素差异决定的。

The results indicated that the effect of deep warm-wet air coming along the behind subtropical high , moving eastward deepening upper trough , shear line and cyclone trough was caused in Zhuanghe , but no strong thunderstorm . The main impact of system is surface cyclone trough ; Low vortex , shear line in 700hPa , 850hPa strengthen the lower convergence , forming a strong momentum of increase and pieces of water vapor ; strong and wide potential pseudo-equivalent temperature frontal zone lied in Zhuanghe area , the establishment of potential instability are indispensable conditions for producing heavy rain .

结果表明：受副热带高压后部深厚的暖湿气流及西风带高空槽、切变线及气旋倒槽等动力系统共同影响，庄河地区出现了大暴雨天气，但没有出现强雷暴，此过程主要影响系统是地面气旋倒槽；700hPa、850hPa低涡、切变线使中低层辐合加强，形成了较强的动力抬升和水汽辐合；庄河地区处于强而宽的假相当位温锋区中，位势不稳定的建立是造成此次强降水的必要条件。

3One case with water blister in the local skin area was found in the routine group and no case was found in the paraffin group.

(3)常规护理的患者有1例发生水疱；涂石蜡油组无水疱。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。