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Transport infrastructure industries : Undergrounds and tunnels which both are under ground has dark and humid environment and poor ventilation; Bridge, the viaduct and Port Machinery are all outdoors under the sun and the rain, so they were prone to rust and corrosion which will seriously reduce the safety factor.

交通设施行业:地铁和隧道都处于地下,环境阴暗潮湿,通风较差;大桥、高架、港口机械长期处于户外日晒雨淋,它们均极易生锈,很快就会发生锈蚀现象,大幅降低了安全系数。

In addition, the mathematical model of the optimal calculation for the ventilation structure dimensions is built on the basis of the evaluation function in pursuit of uniforming the temperature distribution by means of non-liner-programming theory.

本文是以大型水轮发电机热变形及冷却技术研究为背景,进行了大型水轮发电机转子三维温度场及电机通风系统的综合计算研究。

Since the high concentration of helium vapors is completely dangerous,experiment was conducted in the well aired environment.

由于高浓度的氦蒸气完全危险,试验在比较好的通风下进行。

Vapoured DDVP was used as a fumigant for bulk grain to control stored grain insects at the condition of circulative fumigation system. The technique gives good effectiveness at dosage of 0.79g/m3 and the residue in paddy accorded with safe standard after mechanical ventilation.

DDVP气化后,能够在环流熏蒸系统中进行粮食实仓熏蒸杀虫,以空间0.3g/m3、粮堆0.79g/m3的用药量,就可以得到较好的防治效果,并且在机械通风后,稻谷中的DDVP残留量完全符合安全标准。

In the exploitation conditions permission's situation, should use advanced as far as possible longitudinal ventilates way

在使用条件许可的情况下,应该尽可能采用先进的纵向通风方式。

In the exploitation conditions permission's situation, should use advanced as far as possible longitudinal ventilates the way

在使用条件许可的情况下,应该尽可能采用先进的纵向通风方式。

In cool, ventilates, is dry place, in the temperature 5 - 35 ℃ scopes stores.

在阴凉、通风、干燥处,温度5-35℃范围内贮存。

In the exploitation conditions permission\'ssituation, should use advanced as far as possible longitudinal ventilates the way.

在使用条件许可的情况下,应该尽可能采用先进的纵向通风方式。

Finally proposed that ventilates the security measure, the guarantee mine pit regular production and the personal security.

最后提出通风安全措施,保证矿井正常生产和人员安全。

Two times lies is equipped with the big area bay window, the safeguard natural lighting and ventilates.

两次卧设有大面积凸窗,保障采光和通风

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When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。

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