dust guard

英 [dʌst ɡɑːd]

美 [dʌst ɡɑːrd]

防尘罩；防尘装置

The utility model relates to a cylinder piston rod dust guard, in particular to electric stove swaying cylinder dust guard;
本实用新型涉及油缸活塞杆的防尘装置，特别涉及电炉横移油缸防尘装置。
Application of dirt in dust-guard wall project
浅谈灰土在挡土墙工程中的应用
This paper analyses the characteristics of zinc dust produced in the production line of spraying zinc onto the surface of nodular cast iron pipe, properly designs a new type of moving air tight suction guard and expounds the determination of the main parameters.
本文分析了球墨铸铁管表面喷锌生产线锌粉粉尘产生的特点，设计了新型移动式气幕密闭吸风罩，并阐述了主要参数的确定。
In order to reduce dust deposition which results in the increase of the pressure drop, a special catalyst system was adopted, including filling catalyst bed according to dimensional gradient or activity gradient, using guard catalyst with great hole volume etc.
为了减少催化剂床层上造成压力降升高的灰垢沉积，提出采用特殊的催化剂系统解决压力降问题，如催化剂床层采用尺寸梯度和活性梯度的装填方式，应用具有大孔体积的保护剂等。