在强制热风和冷风系统中，通风管道将热空气的冷空气输送到家里不同的地方。
In forced-air heating and cooling systems, ducts carry hot or cold air to different parts of home.
头盔装具上的鳍状物附属物为强制通风片，能够向拆弹专家的面部输送新鲜空气以便排除汗水。
The fin-like appendage on the helmet houses a forced ventilation fan, which blows fresh air over the technician's face to relieve perspiration.
尽管缺乏特殊表皮的强制通风设备，运行的花费还是很低的。
Despite lack of forced ventilation of special envelope seals the running costs are very low.
提供充分的通风，特别是氢容易积聚的屋顶区域。某些应用中强制通风是必要的。
Provide adequate ventilation, particularly in roof areas where hydrogen might collect. Forced ventilation may be necessary in some applications.
研究机械强制通风、人工翻堆以及低温对猪粪堆肥的影响。
Swine manure composting with straw, was operated with mechanical aeration and artificial turning and conducted at low air temperature.
某些应用中强制通风是必要的。
通过对煤气加压站煤气泄漏源点的分析和确认，并对其泄漏源点采取充氮密封和局部强制通风等手段，以达到降低煤气区域爆炸等级的目的，并对煤气加压站防爆等级进行了探讨性划分。
The means of sealing by nitrogen aerating and local forced ventilation are used for the leakage source points so as to reduce the explosion class in the gas zones.
保证堆肥顺利进行的条件下，强制通风好氧堆肥对大肠杆菌的杀灭率可达100%。
The killing rate of aerobic compost of compelled ventilation to coliform can reach 100% in the successful condition.
通风控制是强制通风静态好氧堆肥系统的技术关键。
Aeration control is the key to the aerated static aerobic composting system (ASACS).
所有现代制造的汽车发动机，都需要装备控制曲轴箱有害污染的曲轴箱强制通风系统。
All automobile engines now built are equipped with the positive-crankcase ventilation system of crankcase emission control.
采用强制通风燃烧器，需要额外的电源提供动力；
If forced-air burners are used, a suitable electric power supply must be provided;
但正压强制通风能加快堆料含水率的降低和有机质的降解。
However, the positive forced aeration could accelerate the moisture content reduction and the organic matter degradation of mixtures of sewage sludge and amendment.
研究的结果如下：1.通过测定发现，在猪粪强制通风静态堆肥过程中，臭气的挥发主要集中在升温期和高温前期。
The results are as follows: 1. By determination, we found odor gases emission was mainly at mesopHilic and earlier thermopHilic pHases during aerobic composting of swine manure.
研究的结果如下：1.通过测定发现，在猪粪强制通风静态堆肥过程中，臭气的挥发主要集中在升温期和高温前期。
The results are as follows: 1. By determination, we found odor gases emission was mainly at mesopHilic and earlier thermopHilic pHases during aerobic composting of swine manure.
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