查询词典 water level

The earliest clepsydra was a copper pot holding water with a small opening at the bottom and a pole with scales standing in the center. When the water dropped through the small hole, people determined time by the scale on the pole as the water level decreased.

最早的漏壶用一只铜壶盛水，壶底有一个小洞，壶中插一根刻有刻度的标杆，水从小洞滴出后，人们根据水位降低后标杆上的刻度来判断时间。

After operating the method of storing clear water and discharging muddy water in Sanmenxia Reservoir, the main reason for erosion and deposit in riverway is the change of running water level in flood season .

三门峡水库蓄清排浑运行以来，决定潼关以下库区河道冲淤主要是水库运行水位的高低，汛期水库运行水位的高低对潼关高程的升降起着主要的作用，因此汛期潼关高程的变化主要由水库运行水位决定的。

Oxygen and carbon isotope of the carbonate sediments separately indicate lake waterδ~(18)O andδ~(13)C_,δ~(18)O indicates the volume of the input water which is a good index of Lake water level changes;δ~(13)C_ indicates the degree of the exchange between the lake and the atmosphere and indirectly indicates the ice cover time controlled by the temperature.3. Environmental changes in Lake Sugan drainage area during the past 2670 years reconstructed by mul-index synthesis analysis indicates that during

沉积物碳酸盐氧、碳同位素分别反应了湖水的δ~(18)O和δ~(13)C_，δ~(18)O指示湖水体积变化，是湖泊水位变化的良好指标；δ~(13)C_则指示了湖水和大气的交换程度以及入流水量的大小，间接指示了温度控制下的冰封时间长短。3、多指标综合分析重建的苏干湖流域晚全新世近2670年来的环境变化显示，苏干湖2670年来流域持续变干；出现截然不同的两个大的阶段，即

With the rapid development of the engineering actions in the highland with particular stratigraphic sequence, because of the buildings at the back of the sliding body and the cutting slope at the front, the pushing force of rock and soil in slope increased, but the anti-sliding force weakened. On the other hand, during the rainfall surface water immerged into the layer interface of the diatomite along the unloading cranny, resulting in the diatomite becoming soft after absorbing water and its shear strength lowered. At the time, the water level went up, the dynamic water pressure and uplift pressure increased, the anti-sliding force continued to reduce. Therewithal, the landslides occurred along sliding surfaces with small tilt angle.

在丘陵区此独特的层序地层近年来随着人类工程活动强度的增大，滑体后缘建筑，前缘切坡，造成下滑力增加，抗滑力减弱；另一方面在降雨的作用下，地表水体沿着卸荷裂隙通道浸入到下伏硅藻土层界面，硅藻土吸水软化，抗剪强度减弱，同时地下水水位上升，动水压力和扬压力加大，抗滑力进一步降低，于是产生了低倾角滑面滑坡。

It is different with the manual exhaust Slurry pumps valve is not required to run the wind man, it must be installed on the location of gas pipeline set point, the so-called water gas gathering point is the top horizontal tube of the highest point, this horizontal pipe 3 ‰ gradient requirements, does not allow for local conditions such as depression and bending, when the air into the valve, the valve automatically opens, the air removed, the water level rose, it will automatically close the valve, hot water can not spill, from a virtually eliminating Manual exhaust is not timely, easy to form a "vapor lock" effect caused by hot water heating effects and huge loss of the state.

它与手动排气闸阀不同点是不需要人为跑风，它安装的位置一定要在管路集气点上，所谓集气点就是顶层供水横管的最高点处，对此横管有3‰倾斜度要求，不允许出现局部凹陷和弯曲等情况，当空气进入阀体后，阀门会自动开启，调节阀空气排除后水位上升，它会自动关阀，热水不能外溢，从根本上消除了手动排气不及时，易形成"气阻"影响供热效果和造成热水大量流失的弊端。

Tieling instrument factory is manufacturing various types of level gauge, level gauge, boiler water level gauge, Flame TV a professional manufacturer of industrial products have passed ISO 9001 international certification.

铁岭市仪器仪表制造厂是生产制造各类料位计、液位计、锅炉水位计，炉膛火焰工业电视的专业生产厂家，产品通过ISO 9001国际认证。

In order to improve the braking safety during long mountain slopes, a water-cool system for truck brakes that can detect water level automatically and control the timing of spraying water was designed.

为提高重型货车制动器在山路和下长坡时制动安全性能，设计了一种能自动检测水位并能自动控制喷水时间的制动器自动控制水冷却系统。

In vegetation cluster survey, Leersia hexandra Sw. are found hard to survive over 20cm of water in depth which indicated that water level is critical influence in growth and decline of aquatic plants. Different allocation in water depth and partition measures is useful in aquatic plant management.

植群调查中，李氏禾较不易生长於水深超过20公分的区位，水池之水位深度对水生植物之生长与种间消长，占有重要之影响力，规划时可利用不同水深配置搭配堆置物隔离措作为水生植物管理之用。

A mass of experiments validated that exploitation and rational utilization of saline shallow groundwater, declining the water level to an optimal depth to reducing water invalid evaporation can increase amount of water resources and storage capacity of aquifer, prevent waterlogging or drought, improve groundwater salinity and control the process of soil salination, improve the eco-environment, alleviate the threat for the resource of fresh water.

大量的实验证明，合理开发利用浅层咸水，使咸水水位降低到合理水平，可以：避免地下水的无效蒸发，增加水资源量；增强调蓄能力和抗早防涝能力；促进浅层咸水淡化，改造盐碱地，改善生态环境；减轻对淡水资源的威胁。

In a natural state, the Junggar Basin, inland river sub - 4 Drainage District:(1) Buluntuohai water; Health ulungur water, out of Yamaguchi average annual runoff of 11.3 billion cubic meters, the last 10 years into the lake for many years for the most amount of 600 million cubic meters, most juveniles is only B 01.5 billion cubic meters; in 1970 from Elgin Qi period after the introduction of part of the river water, B the amount of water level decline eased Buluntuohai.

在自然状态下，准噶尔盆地的内陆河分为4个排水区：（1）布伦托海水系；汇乌伦古河水量，出山口平均年径流量113亿立方米，最近10年入湖水量最多年为6亿立方米，最B少年仅015亿立方米；1970年后从额尔齐期河引进部分水B量，缓和了布伦托海的水位下降。

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。