查询词典 drainage-tube

In addition, the repair method can also be filled tree holes, stuffing is best to use small gravel and cement mixture to be compacted filler, filler to strengthen the connection with the xylem, inside the cave can be a number of electroplating nails nails, holes dug in on both sides 4 centimeters deep groove at the bottom of filler from the start, each 20-25 cm for the layer, using linoleum separated from each floor should be inclined slightly outward to facilitate drainage, the edge should not exceed xylem, so that cambium in the formation of callus on it.

另外，也可用填充法修补树洞，填充物最好用小石砾和水泥的混合物，填充物必须压实，为加强填料与木质部的连接，洞内可钉若干电镀铁钉，洞口内两侧挖4厘米深的凹槽，填充物从底部开始，每20厘米至25厘米为一层，用油毡隔开，每层都要向外略斜，以利排水，边缘应不超过木质部，使形成层能在它上面形成愈伤组织。

Drainage Project of Beijing Normal University It used high quality center line butterfly valve supplied by our company.

该工程使用我公司提供的优质中线蝶阀到目前使用状况良好。

It＇s suitable for water supply and drainage, water conservancy and flood control etc, water intake,pool and water catchment well of hydraulic structures. This kind of valve can through closing date machine operate on the platform .

适用于给水排水、水利和防洪等水工构筑物的取水口、水池及集水井内，作切换流道或截断水流用，其安装管道为圆型口设置。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole. Therefore the study on the change and trend of gas flow has significant practical value.

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

Gas flow from borehole directly relates to the gas emission from drill drainage coal bed and judging the initial velocity of gas emission from the borehole .

钻孔瓦斯流量直接关系着钻孔抽放煤层瓦斯涌出量及钻孔瓦斯涌出初速度的判定，因此研究钻孔瓦斯流量的变化及发展趋势具有较大实用价值。

The method of drilling by the wind coal drill ,the coal body produces the crack and releases gas under the conditions of the dynamic pressure function of mining field,then draining gas with drainage facility to govern the local high gas region at working surface are introduced.

介绍了利用风煤钻施工钻孔，在采场动压作用下煤体产生裂隙释放瓦斯，然后利用抽排设施抽放瓦斯，治理采面局部高瓦斯区域的方法。

This article summarizes the successful experiences in technology innovation of refinery equipment and reports improvement of construction method in innovation and its effect. The innovationincludes improvement of thermal insulation structure for coke tower, application of fiber sprayingtechnology for lining of pipe heater, improvement of construction in lining of afterheater for heavyduty oil catalysis, adding of acid resistance porcelain plate lining to neutralizing reactor, innovation on central drainage ...

本文归纳炼油设备技术改造的成功经验，报道炼油厂在技术改造中施工方法的改进情况和效果，其中包括：焦碳塔保温结构的改进、纤维喷涂技术在管式加热炉衬里施工中的应用、重油催化余热锅炉衬里施工方法的改进、中和反应器增加耐酸瓷板衬里、浮顶油罐中央排水管改造、锅炉省煤器入口联箱封闭和锅炉水封罐安装放空管以消除运行隐患的改造措施等。

On the concrete to drain, concrete admixtures, waterproofing paint and Juancai, plastic and composite steel tubes for drainage of the pieces are no longer authorized management.

而对混凝土给排水管、混凝土外加剂、防水涂料和卷材、给排水塑料及其复合管材管件等不再实行核准管理。

E. deepening the anti-seepage curtain of the dam to the relative water-resisting layer and constructing an independent drainage system of seepage control in front of the underground powerhouse.

对百色水利枢纽地下厂房的渗控方案，提出了加深大坝防渗帷幕至相对隔水层方案和厂前设置独立的防渗排水系统2个方案。

The concrete dam displacement is studied considering the factors such as foundation modulus increasing with depth, seepage coefficient reducing as depth, seepage coefficient anisotropic, curtain and drainage in the dam heel and seepage field and stress field coupling. Some conclusions are obtained: if the foundation is considered only with the seepage volume load, the dam top horizontal displacement of the reference base point develops upstream. When the foundation size increases, the reference base point's horizontal displacement increases. However, the value measured by the reversed pendulum anchored to the rock foundation is often regarded to be absolute displacement. The above practice is estimated to be limited when the water load on the dam foundation is taken into account.

分析了地基变形模量随深度逐渐增加、渗透系数随深度逐渐减小、坝基渗透系数各向异性、坝踵设置帷幕排水，以及考虑渗流场和应力场耦合等对混凝土坝位移分量的影响，得出如下结论：作用在地基上的水荷载，使混凝土坝坝顶相对参考基点（倒垂锚固点或坝踵正下方1倍坝高处）的水平位移指向上游，而参考基点的水平位移随地基截取范围的增大而增大，由于大坝工程上常将倒垂线锚固在岩基深处，并认为该倒垂线测值为绝对位移。

The medicinal plant resources of Gentianaceae in Sichuan Province.

四川省龙胆科药用植物资源。

"Some fortuneteller," scoffed the man, I'm the father of THREE children.

" "一些算命"，嘲笑他，"我的父亲有三个孩子。