fresh air duct是什么意思

网络释义

用法例句

The control of welding quality plays an important practical role in construction of pharmaceutical cleaning piping.

医用洁净管道在施工过程中,焊接质量控制具有相当重要的实际意义。

A brief description of the portable water design in hotels was introduced in the paper.

对宾馆管道纯净水系统作了简介 ,并从宾馆管道纯净水供水的管网特点、管道设计秒流量、最大时变化系数kh 值、管道流速v、水泵流量Q和扬程H、管材选用、阀门设置、管网水质二次污染的预防措施等方面论述了宾馆管道纯净水供水管网的设计 ,对管道纯净水系统在宾馆中的应用作了经济可行性分析 ,认为随着人民生活水平的提高及对饮水质量要求的提高 ,宾馆采用管道纯净水系统将是必然的趋势。

Direct-burying of steam pipeline;

浅谈蒸汽管道的直埋敷设

In the light of the fact that elastic creep damage happens to heat resistant steel used as pressure elements like steam pipeline and steam pockets in heat-engine plants at high temperature and under high pressure,this article gives a complete constitutive description of the damage,building up the theory of phenomenology about creep damage.

针对火电厂中蒸汽管道与汽包类承压部件用的耐热钢 ,在承受高温高压时发生弹性蠕变损伤问题 ,给出完整的损伤本构描述 ,建立起唯象学蠕变损伤理论。

A simple and easy density method for graphitization diagnosis of carbon steelsteam pipeline is developed.

采用密度法，对３个火电厂的主蒸汽管道石墨化程度不同的部位进行了密度测试，试验结果发现，石墨化程度越严重，密度越小。

Assessment of Capacity of Bearing Pressure of Steam Injection Pipeline and Verif ication of Full-scale Test;

注汽管道承压能力评估和实物试验验证

The district allocate pipeline pure water, can look at system of talkbacking.

小区配备管道纯净水，可视对讲系统。

Bottled purified water fur drinking

GB17323-1998瓶装饮用纯净水

pure air and water; pure gold; pure primary colors; the violin's pure and lovely song; pure tones.

纯净的空气和水；纯金；纯净的三原色；小提琴纯净可爱的歌唱；纯净的音色。

The Engineer Testing Of Manufacturing System Of Ion-exchange Pure Water;

离子交换纯净水制水系统的工艺调试

His devotion to the king was as pure as dew.

他对国王的忠诚像露水一样纯净。

Impurity of the water made it unfit to drink.

因为水质不纯净，所以不能饮用。

The purity in the water supply is very important .

供水的纯净是非常重要的。

Soak the dried seaweeds in pure( nonchlorinated) water until soft.

将海藻浸泡在纯净水里直到软化。

Hygienic standard of bottled purified water for drinking

GB17324-1998瓶装饮用纯净水卫生标准

You fool!I asked for pure water, not coffee.

你这个笨蛋!我要的是纯净水, 不是咖啡。

the state has strict hygienic regulations for potable water.

国家对饮用纯净水有严格的卫生规定。

Pure water is distillable.

纯净的水是可由蒸馏而得的。

We need suBlimate water for our experiment.

我们的实验需要纯净化的水。

Supposing that there is no pure water;what shall we drink?

假如没有纯净的水，人们喝什么？

The water in mountain rivers is usually pure.

在山间河流中的水通常是纯净的。

Crystal articles made By our factory are purely, transparent and spotlessly white.

本厂的水晶制品，纯净透明，洁白无瑕。

A spring or stream of pure, clear water.

水质纯净且清澈的泉或溪

Exploring the Mechanism for Water Purification in the Different Rebuilding Patterns of Pure Pinus Massoniana at Jinyun Moutain

缙云山马尾松纯林改造净水机制研究