查询词典 drainage-tube

Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.

解决低透气性煤层瓦斯抽放问题的根本途径是增加煤层的透气性。

According to the source,character and using intention,as well as the site rules of Pingmei Group mine drainage,different water treatment technologies are adopted to clean the wastewater and at the same time a special water supply system is selected,which transports cleaned water dividedly on the whole and collectedly in the part,so the water resource is not only fully utilized,the environment is protected,but also the cost is lowest.

针对这种同一矿区既水满为患，又水贵如油的局面，为治理污染改善环境，根据矿井水的性质和特点，开展综合利用研究是非常必要的。1矿井排水水质特点根据集团各矿井排水的

Based on the principle of complementary advantages, joint venture set up high-tech enterprises, the company specializes in urban public utilities intelligent research, design, production, system integration and installation work, mainly for city gas, water supply and drainage, electricity and other fields of automatic meter reading system provides products and full - azimuth of technical services.

成都千嘉科技有限公司是由成都城市燃气有限责任公司、成都金地光电科技有限公司、丹东东发有限公司（暨丹东热工仪表有限公司）本着优势互补的原则，共同投资组建的高新技术企业，公司专业从事城市公用事业智能化的研究、设计、生产、系统集成和安装工作，主要为城市燃气、给排水、供电领域的自动抄表等系统提供产品和全方位的技术服务。

Liber Abaci emphasizes summed-up algorithm, but does not pay attention to the form of propositions derived, and it mainly reflects the tendency of practical algorithms, such as principal method from India and the algebraic knowledge from the Arab. In Liber Abaci it is found some problems similar to ancient Chinese mathematics like pursuit problems, drainage problems, business problems, hundred fowls problems, remainder problems, indeterminate problems, as well as some Algorithm—fraction addition and subtraction,the compound rule of three, the method Elchataym and the method of Excess and Deficit, and so on.

在系统梳理《计算之书》数学内容过程中，笔者发现《计算之书》中存有与中国古代数学中相似的实用算题，如：追及问题、排水问题、经商问题、百鸡问题、剩余问题、不定问题等，以及和中算一致的算法：分数算法、多率法和重今有术、第二类"Elchataym算法"和盈不足术等。

In this paper,hydraulics principle and empirical formula are used in hydraulic calculation of flow in different forms of side ditches and water drainage capability of open water outlet in continuous gradient and concave vertical curve bottom.

利用水力学原理和经验公式，对不同形式的边沟流量和开口式排水口在连续坡度上及凹形竖曲线底部的排水能力进行了水力计算，并采用修正法计算了不同形式的边沟水流量。

To insure proper drainage of condensate water, please read this guide and select installation method as you want.

为确保冷凝水排放系统的正常运作，请认真阅读该说明并选择你所需的安装方式。

Firstly, the general method to building the system is analyzed, and one method based on the theory of the shortest procedure doing the same job is discussed. Secondly, the regional increasing method is used to decide the water flowing direction, in which way the actual drainage area water system is better simulated, producing the satisfying fitness between the built water channel and the actual one. The result also accords with the actuality of water conflux.

本文分析了数字流域水系生成所采取的一般方法，并且针对实际情况采取了以"最短流程法"为基础的数字流域生成方法，以区域增长法确定水流方向，更好地模拟了实际流域水系的情况，使得生成河道和实际河道达到了很好的拟合效果，也更加符合汇流的实际情况。

The sulfate-reducing-bacteria were immobilized in polyvinyl alcohol to treat wastewater containing zinc. The effects of different crosslinking reagents on the conglobation, cohered efficiency of the carbon source, reduction ratio of sulfate, removal ratio of Zn, and COD of drainage were considered.

摘 要：以聚乙烯醇为包埋介质，对硫酸盐还原菌进行固定化处理；以含锌废水为处理对象，考察不同交联剂对成球性能影响、营养源内聚效果、硫酸盐还原效果、锌离子去除率和出水COD等因素。

Different subsystems should be freely arrangable and connectible to each for describing an integrated urban drainage system and the fluxes of water and matter.

不同的子系统应免费arrangable和connectible每个描述一个综合性的城市排水系统及通量的水和此事。

The "Through cordage in the city drainage pipelines" robot researched in this paper is supported by Harbin Technology Fund and it has a wide application value.

本文研制的机器人是哈尔滨市科技攻关项目，具有广阔的应用前景。

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。