Aerial photos of plumeless smokestacks suggest factories lie idle.
航拍照片里没有冒烟的烟囱，显示出工厂都在闲置。
PASS by a chemical plant, and the plumes billowing from its smokestacks may get you thinking.
当你走过一家化工厂时，烟囱中冒出的滚滚浓烟可能引发你的思考。
It is emitted through smokestacks and deposited in rain and snow, often making its way into the water.
烟囱排放及雨雪沉积后，汞常常进入水中。
All new ones are required to install filters in their smokestacks to remove sulphur dioxide, the main cause of acid rain.
所有新建电厂都要求在其烟囱上安装过滤装备以去除二氧化硫——酸雨的主要原因。
The smokestacks rained black soot on the city.
烟囱里冒出的黑色煤灰雨点般地从城市上空落下。
This effect is also used in industrial smokestacks to reduce the pollution that they generate.
这种效应还被应用在工业烟囱上，以减少其产生的污染。
In the future, the gases that come out of power-plant smokestacks will be virtually free of carbon dioxide emissions.
将来，从发电厂烟囱中排放出来的气体将不再含有二氧化碳。
Particulate matter comes from vehicle exhaust pipes, coal plant smokestacks, burning trash piles, dust and other sources.
颗粒物质来自汽车尾气、燃煤厂烟囱排放、垃圾堆燃烧、粉尘及其他源头。
Current carbon capture technology USES caustic amine-based solvents to separate CO2 from the flue gas escaping a facility's smokestacks.
当前碳捕获技术是使用苛性胺系溶剂从逸出工厂的烟囱烟气中分离co2。
But the fight has another prong: stripping carbon dioxide out of the smokestacks of power plants and other factories and storing it safely underground.
但也可以另辟蹊径：将发电厂烟囱排放的二氧化碳留住并将其安全的封藏在地下。
A flow chart maps the sequenceand flow of the process and often includes icons, such as pictures of a truckto represent a transportation step or smokestacks to indicate a factory.
流程图按照顺序和流动过程形式展现，通常包括图标，如一辆卡车代表的是交通运输环节或烟囱表明是工厂。
We normally associate air pollution with smokestacks and cars, but volcanoes, forest fires, dust storms, marshes, oceans, and plants also add to the air chemicals we consider pollutants.
我们常常将空气污染与烟囱和汽车联系在一起，但事实上火山、森林火灾、沙暴、沼泽、海洋和植物都会带来一些我们认为是大气污染物的化学物质。
Congress amended the Clean Air Act that year to set up a market for the permits that power plants must have to release sulfur dioxide (SO2) -a major culprit in acid rain-out of their smokestacks.
美国国会修订空气清净法案，建立了二氧化硫(SO2)排放许可的市场，电厂都必须持有执照，才能从烟囱排出这种造成酸雨的元凶。
Congress amended the Clean Air Act that year to set up a market for the permits that power plants must have to release sulfur dioxide (SO2) -a major culprit in acid rain-out of their smokestacks.
美国国会修订空气清净法案，建立了二氧化硫(SO2)排放许可的市场，电厂都必须持有执照，才能从烟囱排出这种造成酸雨的元凶。
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