Make sure ductwork is insulated.
确保管道系统是绝缘的。
A method of assembling HVAC ductwork components is described.
描述了一种组装HVAC管道系统部件的方法。
The method includes the step of coupling together first and second ductwork components.
该方法包括将第一和第二管道系统部件连接在一起的步骤。
The performance of electric actuator is very important for the controlling of electric valve, even for the ductwork.
电动执行装置性能的好坏，对电动阀门甚至整个管道系统的控制都具有十分重要的影响。
These measures enabled the removal of low ceilings and ductwork, and significantly reduced the home's energy consumption.
这些措施能够移除较低的天花板和管道系统，并显著降低家庭的能源消耗。
Electric valve is a very important part of ductwork which is used to stop or regulate the flow of medium in the pipe.
电动阀门是管道系统中非常重要的器件，其控制驱动部件是电动执行装置。
An alternate embodiment includes a support frame for positioning the filtration system in ductwork or the like other than a return air inlet.
一个替代实施例包括用于将过滤系统定位在除回风管之外的管路等等中的支承框架。
The system also contains either ductwork, for forced air systems, or piping to distribute a heated fluid and radiators to transfer this heat to the air.
系统包括强制送风的风路系统或加热流体的管路系统，通过散热器传给空气。
All ductwork shall be constructed of materials that will be stable to and not react with perchloric acid and/or its byproducts and will have smooth welded seams.
所有管道均应采用性质稳定，且不会与高氯酸及其衍生物发生反应的材质，风道接缝要光滑焊接。
The method additionally includes the steps of wrapping a seal about a joint formed between the first and second ductwork components and positioning a ring clamp about the seal.
该方法另外还包括将密封包围在形成于第一和第二管道系统部件之间的连接部周围并且将环形夹具放置于此密封的周围。
Electric actuator is just the controlling and driving part of electric valve. The performance of electric actuator is very important for the controlling of electric valve, even for the ductwork.
电动执行装置性能的好坏，对电动阀门甚至整个管道系统的控制都具有十分重要的影响。
Electric actuator is just the controlling and driving part of electric valve. The performance of electric actuator is very important for the controlling of electric valve, even for the ductwork.
电动执行装置性能的好坏，对电动阀门甚至整个管道系统的控制都具有十分重要的影响。
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