Therefore, it is very essential that the design and development automatic monitoring of Ringelmann blackness of chimney emissions.
但钢厂区域范围大,烟囱林立,分布广泛,靠人来监控烟囱的排放显然不能做到及时有效,因此开发烟囱排放林格曼黑度自动监测系统十分必要。
Discussion on the high-stack emission of flue gas containing sulphur;
燃煤电厂高烟囱排放含硫烟气问题探讨
The factory was criticized for emitting black smoke from its chimneys
这家工厂因烟囱排放黑烟受到了批评。
The factory emitted black smoke from its chimneys, which polluted the air around
这家工厂的烟囱排放黑烟，污染了周围的空气。
In large cities people breathe in dangerous gases from cars and chimneys.
在城市，人们吸进汽车、烟囱排放出来的有害气体。
Automatic Monitor Analysis System for Chimney Emissions Researching and Implementation Based on Ringelmann Blackness
基于林格曼黑度的烟囱排放自动监测分析系统的研究与实现
The power plant sells the sulfur dioxide from its smokestacks to the Wallboard Company, which uses the compound as a raw material.
发电厂把从烟囱排放出来的二氧化硫卖给墙板制造厂，该厂使用这种化合物作为原材料。
The chimney discharges smoke into the air
烟囱把烟尘排放到空气中。
The chimney is puffing dense smoke into the air.
那烟囱正向空中排放浓烟。
The factory has been emitting black smoke from its chimney, which is against law.
这家工厂的烟囱一直排放黑烟，这是违法的。
a chimney conveys smoke to the outside
烟囱将烟排送至室外。
Chimneys discharge smoke into the atmosphere
烟囱将烟尘排入大气层。
Analysis of funnel pollutant effluent of some thermoelectric plant in Xi'an
西安市某热电厂烟囱污染物排放的分析
Every day the chimneys of factories pour a large volume of smoke to the air to pollute it.
工厂的烟囱每天把大量的烟雾排放到空气中去，造成空气污染。
Thus, emissions from all stacks are considered only in the aggregate.
这样一来，来自所有烟囱的排放都被认为是一个整体。
This chimney fulfills the function of taking away gas fumes.
这个烟囱合乎了排除煤烟功能的需求。
An engine emits smoke from its funnel into the air.
机车通过烟囱把烟排入空气里。
a vent (as in a roof) for smoke to escape.
一个用来排烟的孔（比如屋顶上的烟囱）。
A chimney fulfils the function of taking away smoke.
烟囱发挥排除黑烟的功能。
Amazon flora, for instance, holds more than 100 billion metric tons of carbon, equal to 15 years of tailpipe and smokestack emissions.
例如，亚马逊植物群含有一千多亿吨的二氧化碳，相当于排气管和烟囱15年的排放量。