city park clean-up day
城市公园清理日
生词
clean-up
英[kli:n ʌp]美[klin ʌp]
n.
净化; 清除; 打扫
网络
清理; 清洁; 大扫除
Often supplied as turnkey equipment packages, systems can include heat recovery, gas preheating and downstream tail gas clean-up as required.
经常提供交钥匙的整套设备系统可以根据需要包括热回收、气体预热和下游的尾气净化。
