clean burning

常見例句

• As a new type clean combustion technique, recirculating fluidized bed combustion technique has been widely used.
  循環(huán)流化牀燃燒技術(shù)作爲(wèi)一種新型的潔淨(jìng)燃燒技術(shù)得到廣泛應(yīng)用。
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