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1·This kind of boiler without mechanical ventilation of blowers and induced draft fans is distinguished as natural draft boilers.

这种不采用鼓、引风机机械通风的锅炉，称之为自然通风锅炉。

2·The feasibility of applying natural draft ventilation in Taopinghe phosphate mine was studied from bath aspects in theory and practice .

从理论和实践两方面分析了桃坪河磷矿采用自然通风的可行性。

3·Taking natural thermo-potential difference as natural draft pressure is ambiguous in theory and not in accord with the actual condition of mines.

把自然热位差当做自然风压在理论上是模糊的，是不符合矿井实际情况的。

4·The influence of cross wind on the air flow field in a natural draft dry cooling tower is studied experimentally on the basis of similarity rules.

本文通过模型实验手段研究了横向风对自然通风干式冷却塔空气流场的影响问题。

5·The technology characteristics and engineering data of natural draft cooling tower (NDCT) with flue gas rejection developed in Germany are analyzed.

剖析了德国烟塔合一技术特点和工程数据。

6·This paper studies the influence of cross wind on the performance of natural draft dry - cooling tower by means of model experiment and numerical simulation.

本文结合模型实验与数值模拟两种手段，综合研究了横向风对自然通风干式冷却塔运行性能的影响。

7·A hydraulic computation equation for water distribution sytem of counterflow type natural draft cooling tower has been established by applying Bernoulli Equation.

运用伯努利方程建立了逆流式自然通风冷却塔（逆流塔）配水的水力计算方程。

8·The draft amendment for natural mineral water standard is soliciting public opinions on the website of China's quality watchdog, which limits the level of bromate at 0.01mg/L.

国家质检总局新修订的《饮用天然矿泉水》国家标准草案正在网上征求意见，新标准中溴酸盐限值初定为0.01mg/L。

9·The way to determine whether your answer is natural is simply by writing a first draft of the answer and then read it out loud.

你最好先写下一个「自我介绍」的初稿，然后大声地朗读。

10·Boilers are also classed as natural or forced draft types.

锅炉还可分成自然的或动力的通风类型。