For the air exhaust plus smoke evacuation system, the problem of secondary smoke evacuation arises when smoke spreads to adjacent smoke-control zones.

摘要对于排风兼排烟系统，当烟气蔓延至相邻防烟分区时，将产生系统二次排烟问题。

Though the authors note as a curiosity that campaigns against secondary smoke predated the evidence that it did any harm, they show no desire to explore this seemingly reversed causality.

先有了抗议二次吸烟的运动，然后才出现相关的证据，虽然作者对此表示好奇，但他们并不打算深究这种似乎前后颠倒的因果关系。

This battery cannot be used in combination with other types of primary or secondary batteries, or the abnormal charge or discharge will make batteries overheat, smoke, deform or burn.

电池不可与其他类型的一次或二次电池混用，否则会因为不正常充、放电造成电池发热、冒烟、变形或燃烧。

The paper discusses the current status of smoke and dust treatment in blastfurnace cast house, and puts forward the new thought of secondary dust collection design.

论述了高炉出铁场烟尘治理的现状，对二次除尘设计提出了新的设想。

Presents the air conditioning system and smoke exhaust system design of this project, applies the primary air fan coil system and secondary pump water system in the Top Electronics City.

简要介绍了鼎好电子商城空调系统和防排烟系统的设计，商城采用了风机盘管加新风空调系统和二次泵空调水系统。