以废物能源公司为例，其首先赚取“门头费”，然后是为产生的能源收费，和在粉尘中的金属回收费。
A waste-to-energy firm, for example, earns "gate fees" for taking the waste in the first place, as well as payments for the power it generates and any metals it recovers from the ash.
用于滑石粉的有效吸收和回收利用、以及对有害粉尘的净化、从而达到经济、健康、安全的工作规范。
It is used to effectively suck and recycle the talcum powder, and purify the harmful dusts, thus reaches the economical, healthy and safe working specifications.
这些新工艺、新技术将为我国硫磺回收后续工艺加工无粉尘、无腐蚀及干燥的固体硫提供了技术借鉴。
The new processes and technologies provide technical references for processing dry solid sulfur without ashes and dust and corrosion in the processes following sulfur recovery process in our country.
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