查询词典 water level

In order to increase the stability and reliability as well as the accuracy of water level control system of high pressure feed water heater,the digital intelligent transtucer regulator has been utilized to replace the traditional base type pneumatically operated float regulator.

摘 要］为了提高火力发电厂高加水位控制的稳定性和可靠性，提高控制精度，采用数字式智能变送调节器代替传统的基地式气动浮筒调节器的控制模式，方法简单、实用。

Key words: high pressure feed water heater;digital intelligent transtucer regulator;water level

关键词］高压加热器；智能变送调节器；水位

The paper analyze the influence factor in water level, ground-water, river current, ground structure, bank aspects, wave action and vegetation condition with qualitative method.

分析得出：区域(1)-a库岸再造的主要影响因素是河道纵向水流的冲刷作用；区域(1)库岸再造的影响因素是高水位时波浪的冲刷，水位降落时覆土层的剥离，以及水位变化造成基岩的风化、崩塌；区域(2)、区域(3)库岸再造的主要影响因素是暴雨和水位降落时岸坡的失稳滑塌，次要影响因素是高水位时波浪的冲刷，水位降落时覆土层的剥离，水位变化造成基岩的风化；区域：(4)库岸再造的影响因素是高水位时波浪的冲刷，水位降落时覆土层的剥离。

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。

Equipment has just started work, the air tube through the Y series automatic air unit exhaust emission, low-temperature condensation water to enter the trap, the condensation of water level rise, float up, valve open, the rapid discharge condensate, steam fast access to equipment, equipment, rapid warming, Y series automatic row of air temperature sensing devices, liquid expansion devices automatically turn off the air row.

设备刚启动工作时，管道内的空气经过Y系列自动排空气装置排出，低温凝结水进入疏水阀内，凝结水的液位上升，浮球上升，阀门开启，凝结水迅速排出，蒸汽很快进入设备，设备迅速升温，Y系列自动排空气装置的感温液体膨胀，自动排空气装置关闭。

The study of the effect of vegetation on snow ablation can be used to predict the snowline, glacier and water level. The snow ablation is observed in the Picea crassifolia, shrub, frost edge and grassland of sunny slope at the altitudes between 2600 and 2700m from 2003 to 2007. The daily variable of snow depth and the change of snow coverage and the sensible heat flux of snow surface are used to determine the snow ablation at Pailugou Basin of Water Conservation Forest in the Qilian Mountains. The observation began with the snowfall in October and ended at the completely ablation of snow in May, and got 1344000 observation data.

为研究祁连山植被对积雪消融的影响，利用人工调查积雪深度逐日变化量和积雪盖度变化，并结合空气雪面感热通量观测，对祁连山水源林生态站排露沟流域海拔2600~2700 m青海云杉林、灌丛林、林缘、阳坡草地在2003-2007年的积雪消融进行了研究，每年的观测从10月降雪开始到翌年5月积雪消融完结束，共获取数据134 400个。

But there are still areas in Holland that offer a clear view of the horizon for example in de 'polders', these being areas that are lower than the surrounding water; in them the water level is artificially regulated.

但是在荷兰仍然有一些地方可以清晰得看见地平线（比如填盖的低地，它们低于水面，在此水位被人工控制）。

This article examined the influence on the distribution of Oncomelania, the middle-parasitizeder of schistosome, the changing by ecological environment such as the water level, vegetation and climate, resulted from key projects such as Three Gorges Project, the re-submerging particular polders and the South-to-North Water Diversion Project.

归纳了我国三峡工程、退田还湖及南水北调等一系列重大工程所引起水位、植被及微生物气候等生态环境要素变化对血吸虫唯一中间宿主钉螺分布的影响，分析了血吸虫病疫区的变化趋势和钉螺北移的可能性。

This article examined the influence on the distribution of 〖WTBX〗Oncomelania〖WTBZ〗,the middleparasitizeder of schistosome,the changing by ecological environment such as the water level,vegetation and climate,resulted from key projects such as Three Gorges Project,the resubmerging particular polders and the SouthtoNorth Water Diversion Project.

归纳了我国三峡工程、退田还湖及南水北调等一系列重大工程所引起水位、植被及微生物气候等生态环境要素变化对血吸虫唯一中间宿主钉螺分布的影响，分析了血吸虫病疫区的变化趋势和钉螺北移的可能性。

Based on analytical method,the paper shows that raising the length of a riser can elevate the water-hammer pressure and reduce the fluctuation of water level effectively in surge tank.

通过理论和解析方法讨论连接管较长时，其内水体惯性对调压井水锤压力和水位波动的影响。

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。