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roof-water
相关语句
  蓄水屋面
     STUDY OF THE THERMAL ISOLATION PREFORMACE OF ROOF-WATER
     蓄水屋面强化隔热研究
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  相似匹配句对
     Fiddler on the Roof
     《屋顶上的提琴手》:种族,世代,阶级与性别冲突的史诗
短句来源
     DESIGN OF TRANSPARENT ROOF
     透光屋面设计(续1)
短句来源
     On roof waterproofing treatment
     浅谈屋面防水处理
短句来源
     Roof types and roofing waterproofing
     屋面形式与屋面防水
短句来源
     Technology of Roof's Energy-saving
     建筑屋面节能技术
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By means of using the method of dual-statistical model identification in this paper, the best dual-statistical model and relevant regressive coefficients among the heightof roof water flowing fractured zone and total ming height of coal seam and uniaxial compressive strength of relevant roof strata have bee obtained. The model, compared with measured information, has higher precision. A convenient and practical formula used to estimate the height water flowing fractured zone has been provided for underwater...

By means of using the method of dual-statistical model identification in this paper, the best dual-statistical model and relevant regressive coefficients among the heightof roof water flowing fractured zone and total ming height of coal seam and uniaxial compressive strength of relevant roof strata have bee obtained. The model, compared with measured information, has higher precision. A convenient and practical formula used to estimate the height water flowing fractured zone has been provided for underwater mining. 1fig., 2tabs., 4refs.

本文运用二元统计模型辨识方法.得出了顶板导水裂缝带高度(H)与煤层累计采厚(∑M)及顶板岩层单向抗压强度之间的最佳面归模型和相应的面归系数.该模型经与实测资料对比具有较高的精度.为煤矿进行水体下采煤提供了一种既方便又实用的预计顶板导水裂缝带高度公式。图1,表2,参4。

Extensive efforts have been made to relieve the underpressure of water supply systems in many cities and towns.The solution to build new water utilities may be very effective but does often involve prohibitively high cost.After an investigation being made,the author recommends the following schemes:to operate different pressures for different zones in the case where underpressure is prevailing for the whole city or town,which can result in a lower pressure drop and power saving;to exert the central pressure...

Extensive efforts have been made to relieve the underpressure of water supply systems in many cities and towns.The solution to build new water utilities may be very effective but does often involve prohibitively high cost.After an investigation being made,the author recommends the following schemes:to operate different pressures for different zones in the case where underpressure is prevailing for the whole city or town,which can result in a lower pressure drop and power saving;to exert the central pressure boost for newly developed districts and satellite towns;to use individual pressurization for highrise buildings and the users with special requirements;and to benefit simply from the installation of roof water tanks for the city or town where the water can reach to the third storey of buildings daytime and to the roof at night under the pressure of municipal pipelines.

为补救我国城镇供水水压的不足,各地采取了不少措施。作者调查分析后认为:在水压普遍不足的城镇,采用分区分压供水可减少阻力,降低电耗;新区和卫星城宜采用集中加压方式;高层建筑和个别用户可采用单独加压方式;城市管网水压白天能上三楼,夜间可至屋顶地区,设置屋顶水箱仍是一种简便有效的方法;新辟水源、扩建水厂、改造城市管网是根本解决城镇供水的有效方法,但涉及面广,一次投资较大。

A multitude of ring-shaped cracks and three water leakage points were discovered in the right side lower header of a boiler together with a cave-in of the boiler roof water-cooled wall.Through the metallographic analysis of the materials used for the left and right side lower header and the said water-cooled wall as well as an analysis of the boiler construction and water circulation circuits the cause of the boiler lower header failure was finally identified.

锅炉右下集箱产生了很多环状裂纹和三个渗水点,同时顶棚水冷壁管塌陷。通过对左右下集箱、顶棚水冷壁材质的金相组织分析,对锅炉结构及水循环的分析,得出此锅炉下集箱失效的原因。

 
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