Self-propelled sweepers and scrubbers tank and hopper capacity rating .
自推进的扫墓和洗涤坦克和料斗的能力评价。
More efficient scrubbers mean more contaminants in wastewater .
更高效的洗涤器意味着需要处理废水中的更多的污染物.
Scrubbers and precipitators can make coal , the dominant fuel , more acceptable .
通过使用脱硫和除尘设备，大家就更容易接受煤炭这种主要的燃料了。
Most environmentalists were pushing a " command-and-control " approach , with federal officials requiring utilities to install scrubbers capable of removing the sulfur dioxide from power-plant exhausts .
